Boston Marathon logo
BOSTON MARATHON 2025

Peter Jonkman

Bib: 13689•M

AB

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:21/mi
22:50
↑ 97↓ 3451.5%
10K· 6.21 mi
7:22/mi
45:44
↑ 79↓ 1380.4%
15K· 9.32 mi
7:42/mi
1:09:40
↑ 67↓ 78
20K· 12.43 mi
9:02/mi
1:37:45
↑ 106↓ 860.1%
Half· 13.11 mi
8:45/mi
1:43:43
↑ 19↓ 370.5%
25K· 15.53 mi
8:59/mi
2:05:31
↑ 66↓ 880.2%
30K· 18.64 mi
10:01/mi
2:36:37
↑ 181↓ 1480.2%
20M
9:52/mi
2:50:01
↑ 64↓ 500.2%
21M
11:47/mi
3:01:48
↑ 106↓ 241.6%
35K· 21.75 mi
10:32/mi
3:09:41
↑ 17↓ 861.7%
23M
10:37/mi
3:22:58
↑ 23↓ 630.6%
24M
9:41/mi
3:32:39
↓ 821.3%
40K· 24.85 mi
8:54/mi
3:40:16
↓ 200.3%
25.2M
9:52/mi
3:43:40
↑ 13↓ 160.2%
Finish· 26.22 mi
7:34/mi
3:51:23
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:43
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time2:07:40
Pace9:44 /mi
📊Positive Split: 23.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5722:507:2122:50
7:21
-
10K
6.21 mi11:14:5145:447:2222:54
7:22
+0:01
15K
9.32 mi11:38:471:09:407:2823:56
7:42
+0:20
20K
12.43 mi12:06:521:37:457:5228:05
9:02
+1:20
Half
13.11 mi12:12:501:43:437:555:58
8:45
-0:17
25K
15.53 mi12:34:382:05:318:0521:48
8:59
+0:14
30K
18.64 mi13:05:442:36:378:2431:06
10:01
+1:02
20M
20.00 mi13:19:082:50:018:3013:24
9:52
-0:09
21M
21.00 mi13:30:553:01:488:3911:47
11:47
+1:55
35K
21.75 mi13:38:483:09:418:437:53
10:32
-1:15
23M
23.00 mi13:52:053:22:588:4913:17
10:37
+0:05
24M
24.00 mi14:01:463:32:398:529:41
9:41
-0:56
40K
24.85 mi14:09:233:40:168:527:37
8:54
-0:47
25.2M
25.20 mi14:12:473:43:408:533:24
9:52
+0:58
Finish
26.22 mi14:20:303:51:238:507:43
7:34
-2:18

Checkpoints & Pacing

📈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

7:21 /mi

Average Pace

8:50 /mi

Slowest Pace

11:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:17:23

33% of race

Time at Steady Pace

1:03:28

27% of race

Time at Slower Pace

1:30:32

39% of race

Average Pace: 8:49 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:51:5722:507:2122:50
7:21
#10851
10K
6.21 mi11:14:5145:447:2222:54
7:22
#10863
15K
9.32 mi11:38:471:09:407:2823:56
7:42
#11753
20K
12.43 mi12:06:521:37:457:5228:05
9:02
#14805
Half
13.11 mi12:12:501:43:437:555:58
8:45
#15194
25K
15.53 mi12:34:382:05:318:0521:48
8:59
#16172
30K
18.64 mi13:05:442:36:378:2431:06
10:01
#17474
20M
20.00 mi13:19:082:50:018:3013:24
9:52
#17783
21M
21.00 mi13:30:553:01:488:3911:47
11:47
#18344
35K
21.75 mi13:38:483:09:418:437:53
10:32
#18669
23M
23.00 mi13:52:053:22:588:4913:17
10:37
#19011
24M
24.00 mi14:01:463:32:398:529:41
9:41
#19093
40K
24.85 mi14:09:233:40:168:527:37
8:54
#18948
25.2M
25.20 mi14:12:473:43:408:533:24
9:52
#18920
Finish
26.22 mi14:20:303:51:238:507:43
7:34
#18619
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi108518622862213530(Top 48%)9744(Top 61%)9744(Top 488%)
10K6.21 mi3.10 mi10863-128600+228600+2210918(Top 38%)8625(Top 54%)8625(Top 432%)
15K9.32 mi3.11 mi11753-8909027-4279027-42713530(Top 48%)9744(Top 61%)9744(Top 488%)
20K12.43 mi3.11 mi14805-305210287-126010287-126021160(Top 74%)12963(Top 80%)12963(Top 649%)
Half13.11 mi0.68 mi15194-38910454-16710454-16720579(Top 72%)12705(Top 79%)12705(Top 637%)
25K15.53 mi2.42 mi16172-97810867-41310867-41319845(Top 70%)12345(Top 77%)12345(Top 618%)
30K18.64 mi3.11 mi17474-130211320-45311320-45321623(Top 76%)12994(Top 81%)12994(Top 651%)
20M20.00 mi1.36 mi17783-30911426-10611426-10620479(Top 72%)12357(Top 77%)12357(Top 619%)
21M21.00 mi1.00 mi18344-56111660-23411660-23423175(Top 82%)13526(Top 84%)13526(Top 678%)
35K21.75 mi0.75 mi18669-32511782-12211782-12223243(Top 82%)13503(Top 84%)13503(Top 677%)
23M23.00 mi1.25 mi19011-34211904-12211904-12222284(Top 78%)13008(Top 81%)13008(Top 652%)
24M24.00 mi1.00 mi19093-8211920-1611920-1620310(Top 72%)12009(Top 75%)12009(Top 602%)
40K24.85 mi0.85 mi18948+14511824+9611824+9615793(Top 56%)9821(Top 61%)9821(Top 492%)
25.2M25.20 mi0.35 mi18920+2811804+2011804+2016361(Top 58%)10071(Top 63%)10071(Top 505%)
Finish26.22 mi1.02 mi18619+30111656+14811656+1489743(Top 34%)6854(Top 43%)6854(Top 343%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

13530

Males

9744

M50-54

9744

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10918

Males

8625

M50-54

8625

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

13530

Males

9744

M50-54

9744

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

21160

Males

12963

M50-54

12963

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

20579

Males

12705

M50-54

12705

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

19845

Males

12345

M50-54

12345

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

21623

Males

12994

M50-54

12994

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

20479

Males

12357

M50-54

12357

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

23175

Males

13526

M50-54

13526

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

23243

Males

13503

M50-54

13503

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

22284

Males

13008

M50-54

13008

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

20310

Males

12009

M50-54

12009

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15793

Males

9821

M50-54

9821

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16361

Males

10071

M50-54

10071

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

9743

Males

6854

M50-54

6854

Passing Analysis

Category:
Athletes Passed
1010
Passed By
8778
Net Change
-7768
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10851
5K → 10K256268-12#10851#10863
10K → 15K44934-890#10863#11753
15K → 20K83060-3052#11753#14805
20K → Half2391-389#14805#15194
Half → 25K20998-978#15194#16172
25K → 30K351337-1302#16172#17474
30K → 20M56365-309#17474#17783
20M → 21M10571-561#17783#18344
21M → 35K10335-325#18344#18669
35K → 23M34376-342#18669#19011
23M → 24M42124-82#19011#19093
24M → 40K1527+145#19093#18948
40K → 25.2M3911+28#18948#18920
25.2M → Finish3021+301#18920#18619
TOTALS10108778-7768
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

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

.gpx files up to 10MB

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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing