Johannes Belgers

Bib: 21881β€’M

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M60-64)
#0 / 1514
Race Day Weather
51Β°/41Β°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
26:31
3.11 mi
Rank: #20281
Start β†’ 5K
26:31 | 8:33/mi
10K
53:27
6.21 mi
Rank: #20761 (-480)
5K β†’ 10K
26:56 | 8:41/mi
15K
1:22:10
9.32 mi
Rank: #21851 (-1090)
10K β†’ 15K
28:43 | 9:15/mi
20K
1:52:54
12.43 mi
Rank: #22872 (-1021)
15K β†’ 20K
30:44 | 9:54/mi
HALF
1:59:44
13.11 mi
Rank: #23093 (-221)
20K β†’ HALF
6:50 | 10:02/mi
25K
2:25:58
15.53 mi
Rank: #23768 (-675)
HALF β†’ 25K
26:14 | 10:50/mi
30K
3:02:39
18.64 mi
Rank: #24468 (-700)
25K β†’ 30K
36:41 | 11:49/mi
20M
3:19:10
20.00 mi
Rank: #24720 (-252)
30K β†’ 20M
16:31 | 12:10/mi
21M
3:31:56
21.00 mi
Rank: #24810 (-90)
20M β†’ 21M
12:46 | 12:46/mi
35K
3:40:31
21.75 mi
Rank: #24858 (-48)
21M β†’ 35K
8:35 | 11:29/mi
23M
3:55:14
23.00 mi
Rank: #24945 (-87)
35K β†’ 23M
14:43 | 11:46/mi
24M
4:06:43
24.00 mi
Rank: #25009 (-64)
23M β†’ 24M
11:29 | 11:29/mi
40K
4:15:40
24.85 mi
Rank: #24925 (+84)
24M β†’ 40K
8:57 | 10:29/mi
25.2M
4:19:15
25.20 mi
Rank: #24876 (+49)
40K β†’ 25.2M
3:35 | 10:24/mi
FINISH
4:28:55
26.22 mi
Rank: #24798 (+78)
25.2M β†’ FINISH
9:40 | 9:30/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:59:44
Pace9:09 /mi
2nd Half
Distance13.11 mi
Time2:29:11
Pace11:23 /mi
πŸ“ŠPositive Split: 24.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:0726:318:3326:31
8:33
-
10K
6.21 mi11:55:0353:278:3726:56
8:41
+0:08
15K
9.32 mi12:23:461:22:108:4928:43
9:15
+0:34
20K
12.43 mi12:54:301:52:549:0630:44
9:54
+0:39
HALF
13.11 mi13:01:201:59:449:096:50
10:02
+0:08
25K
15.53 mi13:27:342:25:589:2426:14
10:50
+0:48
30K
18.64 mi14:04:153:02:399:4836:41
11:49
+0:59
20M
20.00 mi14:20:463:19:109:5816:31
12:10
+0:21
21M
21.00 mi14:33:323:31:5610:0612:46
12:46
+0:36
35K
21.75 mi14:42:073:40:3110:098:35
11:29
-1:17
23M
23.00 mi14:56:503:55:1410:1414:43
11:46
+0:17
24M
24.00 mi15:08:194:06:4310:1711:29
11:29
-0:17
40K
24.85 mi15:17:164:15:4010:188:57
10:29
-1:00
25.2M
25.20 mi15:20:514:19:1510:183:35
10:24
-0:05
FINISH
26.22 mi15:30:314:28:5510:169:40
9:30
-0:54

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:33 /mi

Average Pace

10:16 /mi

Slowest Pace

12:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:31:50

34% of race

Time at Steady Pace

1:16:20

28% of race

Time at Slower Pace

1:40:45

37% of race

Average Pace: 10:15 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:28:0726:318:3326:31
8:33
#20281
10K
6.21 mi11:55:0353:278:3726:56
8:41
#20761
15K
9.32 mi12:23:461:22:108:4928:43
9:15
#21851
20K
12.43 mi12:54:301:52:549:0630:44
9:54
#22872
HALF
13.11 mi13:01:201:59:449:096:50
10:02
#23093
25K
15.53 mi13:27:342:25:589:2426:14
10:50
#23768
30K
18.64 mi14:04:153:02:399:4836:41
11:49
#24468
20M
20.00 mi14:20:463:19:109:5816:31
12:10
#24720
21M
21.00 mi14:33:323:31:5610:0612:46
12:46
#24810
35K
21.75 mi14:42:073:40:3110:098:35
11:29
#24858
23M
23.00 mi14:56:503:55:1410:1414:43
11:46
#24945
24M
24.00 mi15:08:194:06:4310:1711:29
11:29
#25009
40K
24.85 mi15:17:164:15:4010:188:57
10:29
#24925
25.2M
25.20 mi15:20:514:19:1510:183:35
10:24
#24876
FINISH
26.22 mi15:30:314:28:5510:169:40
9:30
#24798
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi20281124061240623643(Top 81%)14073(Top 86%)14073(Top 930%)
10K6.21 mi3.10 mi20761-48012649-24312649-24321264(Top 73%)12908(Top 79%)12908(Top 853%)
15K9.32 mi3.11 mi21851-109013168-51913168-51923643(Top 81%)14073(Top 86%)14073(Top 930%)
20K12.43 mi3.11 mi22872-102113687-51913687-51924774(Top 85%)14590(Top 89%)14590(Top 964%)
HALF13.11 mi0.68 mi23093-22113786-9913786-9925728(Top 89%)15012(Top 92%)15012(Top 992%)
25K15.53 mi2.42 mi23768-67514116-33014116-33026034(Top 90%)15120(Top 93%)15120(Top 999%)
30K18.64 mi3.11 mi24468-70014433-31714433-31726532(Top 91%)15240(Top 93%)15240(Top 1007%)
20M20.00 mi1.36 mi24720-25214540-10714540-10726596(Top 92%)15196(Top 93%)15196(Top 1004%)
21M21.00 mi1.00 mi24810-9014554-1414554-1426091(Top 90%)14929(Top 91%)14929(Top 986%)
35K21.75 mi0.75 mi24858-4814578-2414578-2426010(Top 90%)14873(Top 91%)14873(Top 982%)
23M23.00 mi1.25 mi24945-8714594-1614594-1625802(Top 89%)14740(Top 90%)14740(Top 974%)
24M24.00 mi1.00 mi25009-6414611-1714611-1725915(Top 89%)14753(Top 90%)14753(Top 974%)
40K24.85 mi0.85 mi24925+8414563+4814563+4823124(Top 80%)13353(Top 82%)13353(Top 882%)
25.2M25.20 mi0.35 mi24876+4914531+3214531+3220735(Top 71%)12238(Top 75%)12238(Top 808%)
FINISH26.22 mi1.02 mi24798+7814475+5614475+5622292(Top 77%)12991(Top 80%)12991(Top 858%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
Γ—21
+97ft-345ft

Overall

23643

Males

14073

M60-64

14073

5K→10K

3.1 - 6.2 mi

Top 73%
Γ—5
+79ft-138ft

Overall

21264

Males

12908

M60-64

12908

10K→15K

6.2 - 9.3 mi

Top 81%
Γ—3
+67ft-78ft

Overall

23643

Males

14073

M60-64

14073

15K→20K

9.3 - 12.4 mi

Top 85%
Γ—5
+106ft-86ft

Overall

24774

Males

14590

M60-64

14590

20K→HALF

12.4 - 13.1 mi

Top 89%
Γ—2
+19ft-37ft

Overall

25728

Males

15012

M60-64

15012

HALF→25K

13.1 - 15.5 mi

Top 90%
Γ—4
+66ft-88ft

Overall

26034

Males

15120

M60-64

15120

25K→30K

15.5 - 18.6 mi

Top 91%
Γ—9
+181ft-148ft

Overall

26532

Males

15240

M60-64

15240

30K→20M

18.6 - 20.0 mi

Top 92%
Γ—5
+64ft-50ft

Overall

26596

Males

15196

M60-64

15196

20M→21M

20.0 - 21.0 mi

Top 90%
Γ—8
+106ft-24ft

Overall

26091

Males

14929

M60-64

14929

21M→35K

21.0 - 21.8 mi

Top 90%
Γ—7
+17ft-86ft

Overall

26010

Males

14873

M60-64

14873

35K→23M

21.8 - 23.0 mi

Top 89%
Γ—5
+23ft-63ft

Overall

25802

Males

14740

M60-64

14740

23M→24M

23.0 - 24.0 mi

Top 89%
Γ—6
+12ft-82ft

Overall

25915

Males

14753

M60-64

14753

24M→40K

24.0 - 24.9 mi

Top 80%
Γ—1
+6ft-20ft

Overall

23124

Males

13353

M60-64

13353

40K→25.2M

24.9 - 25.2 mi

Top 71%
Γ—1
+13ft-16ft

Overall

20735

Males

12238

M60-64

12238

25.2M→FINISH

25.2 - 26.2 mi

Top 77%
Γ—2
+22ft-21ft

Overall

22292

Males

12991

M60-64

12991

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
565
Passed By
5082
Net Change
-4517
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#20281
5K β†’ 10K118598-480#20281#20761
10K β†’ 15K131103-1090#20761#21851
15K β†’ 20K301051-1021#21851#22872
20K β†’ HALF5226-221#22872#23093
HALF β†’ 25K17692-675#23093#23768
25K β†’ 30K28728-700#23768#24468
30K β†’ 20M21273-252#24468#24720
20M β†’ 21M24114-90#24720#24810
21M β†’ 35K2371-48#24810#24858
35K β†’ 23M35122-87#24858#24945
23M β†’ 24M2690-64#24945#25009
24M β†’ 40K895+84#25009#24925
40K β†’ 25.2M501+49#24925#24876
25.2M β†’ FINISH868+78#24876#24798
TOTALS5655082-4517
πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

Loading...

🎨Heatmap Timeline

Loading...

πŸ”„Passing Circle

Loading...

🌊Position Flow

Loading...

πŸƒRace Lanes

Loading...

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing