All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2026

Gert Jan Boerman

Bib: 4681•M

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Top 13%
Gender (Male)
#0 / 16340
Top 21%
Masters (Masters Men)
#0 / 10617
Top 8%
Age Group (M40-44)
#0 / 2198
Top 22%
Race Day Weather
51°/41°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
20:50
3.11 mi
Rank: #5929
Start → 5K
20:50 | 6:43/mi
10K
41:39
6.21 mi
Rank: #5920 (+9)
5K → 10K
20:49 | 6:43/mi
15K
1:02:13
9.32 mi
Rank: #5594 (+326)
10K → 15K
20:34 | 6:38/mi
20K
1:22:48
12.43 mi
Rank: #5282 (+312)
15K → 20K
20:35 | 6:38/mi
HALF
1:27:17
13.11 mi
Rank: #5261 (+21)
20K → HALF
4:29 | 6:35/mi
25K
1:43:21
15.53 mi
Rank: #5065 (+196)
HALF → 25K
16:04 | 6:38/mi
30K
2:04:10
18.64 mi
Rank: #4776 (+289)
25K → 30K
20:49 | 6:43/mi
20M
2:13:09
20.00 mi
Rank: #4590 (+186)
30K → 20M
8:59 | 6:37/mi
21M
2:19:59
21.00 mi
Rank: #4426 (+164)
20M → 21M
6:50 | 6:50/mi
35K
2:24:47
21.75 mi
Rank: #4346 (+80)
21M → 35K
4:48 | 6:25/mi
23M
2:32:53
23.00 mi
Rank: #4163 (+183)
35K → 23M
8:06 | 6:29/mi
24M
2:39:15
24.00 mi
Rank: #4027 (+136)
23M → 24M
6:22 | 6:22/mi
40K
2:44:44
24.85 mi
Rank: #3908 (+119)
24M → 40K
5:29 | 6:25/mi
25.2M
2:47:06
25.20 mi
Rank: #3859 (+49)
40K → 25.2M
2:22 | 6:52/mi
FINISH
2:53:16
26.22 mi
Rank: #3695 (+164)
25.2M → FINISH
6:10 | 6:04/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:27:17
Pace6:40 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:25:59
Pace6:34 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:1120:506:4320:50
6:43
-
10K
6.21 mi10:47:0041:396:4320:49
6:43
0:00
15K
9.32 mi11:07:341:02:136:4120:34
6:38
-0:05
20K
12.43 mi11:28:091:22:486:4020:35
6:38
0:00
HALF
13.11 mi11:32:381:27:176:404:29
6:35
-0:03
25K
15.53 mi11:48:421:43:216:4016:04
6:38
+0:03
30K
18.64 mi12:09:312:04:106:4020:49
6:43
+0:05
20M
20.00 mi12:18:302:13:096:408:59
6:37
-0:06
21M
21.00 mi12:25:202:19:596:406:50
6:50
+0:13
35K
21.75 mi12:30:082:24:476:404:48
6:25
-0:25
23M
23.00 mi12:38:142:32:536:398:06
6:29
+0:04
24M
24.00 mi12:44:362:39:156:396:22
6:22
-0:07
40K
24.85 mi12:50:052:44:446:385:29
6:25
+0:03
25.2M
25.20 mi12:52:272:47:066:382:22
6:52
+0:27
FINISH
26.22 mi12:58:372:53:166:376:10
6:04
-0:48

Checkpoint Splits Visualizations

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

📈Pace 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

6:04 /mi

Average Pace

6:37 /mi

Slowest Pace

6:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

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

1:41:36

59% of race

Time at Steady Pace

1:11:40

41% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:36 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ 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 mi10:26:1120:506:4320:50
6:43
#5929
10K
6.21 mi10:47:0041:396:4320:49
6:43
#5920
15K
9.32 mi11:07:341:02:136:4120:34
6:38
#5594
20K
12.43 mi11:28:091:22:486:4020:35
6:38
#5282
HALF
13.11 mi11:32:381:27:176:404:29
6:35
#5261
25K
15.53 mi11:48:421:43:216:4016:04
6:38
#5065
30K
18.64 mi12:09:312:04:106:4020:49
6:43
#4776
20M
20.00 mi12:18:302:13:096:408:59
6:37
#4590
21M
21.00 mi12:25:202:19:596:406:50
6:50
#4426
35K
21.75 mi12:30:082:24:476:404:48
6:25
#4346
23M
23.00 mi12:38:142:32:536:398:06
6:29
#4163
24M
24.00 mi12:44:362:39:156:396:22
6:22
#4027
40K
24.85 mi12:50:052:44:446:385:29
6:25
#3908
25.2M
25.20 mi12:52:272:47:066:382:22
6:52
#3859
FINISH
26.22 mi12:58:372:53:166:376:10
6:04
#3695
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5929541754175053(Top 17%)4699(Top 29%)4699(Top 214%)
10K6.21 mi3.10 mi5920+95412+55412+55936(Top 20%)5400(Top 33%)5400(Top 246%)
15K9.32 mi3.11 mi5594+3265155+2575155+2575053(Top 17%)4699(Top 29%)4699(Top 214%)
20K12.43 mi3.11 mi5282+3124895+2604895+2604588(Top 16%)4299(Top 26%)4299(Top 196%)
HALF13.11 mi0.68 mi5261+214879+164879+164968(Top 17%)4598(Top 28%)4598(Top 209%)
25K15.53 mi2.42 mi5065+1964709+1704709+1704279(Top 15%)3996(Top 24%)3996(Top 182%)
30K18.64 mi3.11 mi4776+2894457+2524457+2523695(Top 13%)3461(Top 21%)3461(Top 157%)
20M20.00 mi1.36 mi4590+1864291+1664291+1663019(Top 10%)2840(Top 17%)2840(Top 129%)
21M21.00 mi1.00 mi4426+1644142+1494142+1492621(Top 9%)2463(Top 15%)2463(Top 112%)
35K21.75 mi0.75 mi4346+804069+734069+733114(Top 11%)2901(Top 18%)2901(Top 132%)
23M23.00 mi1.25 mi4163+1833900+1693900+1692301(Top 8%)2167(Top 13%)2167(Top 99%)
24M24.00 mi1.00 mi4027+1363773+1273773+1272510(Top 9%)2334(Top 14%)2334(Top 106%)
40K24.85 mi0.85 mi3908+1193659+1143659+1142195(Top 8%)2046(Top 13%)2046(Top 93%)
25.2M25.20 mi0.35 mi3859+493613+463613+462126(Top 7%)1974(Top 12%)1974(Top 90%)
FINISH26.22 mi1.02 mi3695+1643468+1453468+1451846(Top 6%)1718(Top 11%)1718(Top 78%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21
+97ft-345ft

Overall

5053

Males

4699

M40-44

4699

5K→10K

3.1 - 6.2 mi

Top 20%
×5
+79ft-138ft

Overall

5936

Males

5400

M40-44

5400

10K→15K

6.2 - 9.3 mi

Top 17%
×3
+67ft-78ft

Overall

5053

Males

4699

M40-44

4699

15K→20K

9.3 - 12.4 mi

Top 16%
×5
+106ft-86ft

Overall

4588

Males

4299

M40-44

4299

20K→HALF

12.4 - 13.1 mi

Top 17%
×2
+19ft-37ft

Overall

4968

Males

4598

M40-44

4598

HALF→25K

13.1 - 15.5 mi

Top 15%
×4
+66ft-88ft

Overall

4279

Males

3996

M40-44

3996

25K→30K

15.5 - 18.6 mi

Top 13%
×9
+181ft-148ft

Overall

3695

Males

3461

M40-44

3461

30K→20M

18.6 - 20.0 mi

Top 10%
×5
+64ft-50ft

Overall

3019

Males

2840

M40-44

2840

20M→21M

20.0 - 21.0 mi

Top 9%
×8
+106ft-24ft

Overall

2621

Males

2463

M40-44

2463

21M→35K

21.0 - 21.8 mi

Top 11%
×7
+17ft-86ft

Overall

3114

Males

2901

M40-44

2901

35K→23M

21.8 - 23.0 mi

Top 8%
×5
+23ft-63ft

Overall

2301

Males

2167

M40-44

2167

23M→24M

23.0 - 24.0 mi

Top 9%
×6
+12ft-82ft

Overall

2510

Males

2334

M40-44

2334

24M→40K

24.0 - 24.9 mi

Top 8%
×1
+6ft-20ft

Overall

2195

Males

2046

M40-44

2046

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1
+13ft-16ft

Overall

2126

Males

1974

M40-44

1974

25.2M→FINISH

25.2 - 26.2 mi

Top 6%
×2
+22ft-21ft

Overall

1846

Males

1718

M40-44

1718

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2509*
Passed By
275
Net Change
+2234
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5929
5K → 10K204*195+9#5929#5920
10K → 15K344*18+326#5920#5594
15K → 20K321*9+312#5594#5282
20K → HALF3615+21#5282#5261
HALF → 25K205*9+196#5261#5065
25K → 30K300*11+289#5065#4776
30K → 20M1882+186#4776#4590
20M → 21M1684+164#4590#4426
21M → 35K833+80#4426#4346
35K → 23M1841+183#4346#4163
23M → 24M1393+136#4163#4027
24M → 40K1212+119#4027#3908
40K → 25.2M490+49#3908#3859
25.2M → FINISH1673+164#3859#3695
TOTALS2509*275+2234

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race 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