Boston Marathon logo
BOSTON MARATHON 2025

Stephane Contant

Bib: 1073•M

ON

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 5%
Division (M18-39)
#0 / 5642
Top 11%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:37
Rank: #387
Start → 5K
17:37 | 5:40/mi
10K· 6.21 mi
35:03
Rank: #341 (+46)
5K → 10K
17:26 | 5:37/mi
15K· 9.32 mi
52:37
Rank: #329 (+12)
10K → 15K
17:34 | 5:39/mi
20K· 12.43 mi
1:10:42
Rank: #362 (-33)
15K → 20K
18:05 | 5:49/mi
Half· 13.11 mi
1:14:34
Rank: #364 (-2)
20K → Half
3:52 | 5:40/mi
25K· 15.53 mi
1:29:01
Rank: #399 (-35)
Half → 25K
14:27 | 5:58/mi
30K· 18.64 mi
1:48:42
Rank: #480 (-81)
25K → 30K
19:41 | 6:20/mi
20M
1:57:37
Rank: #521 (-41)
30K → 20M
8:55 | 6:34/mi
21M
2:04:42
Rank: #570 (-49)
20M → 21M
7:05 | 7:05/mi
35K· 21.75 mi
2:09:20
Rank: #577 (-7)
21M → 35K
4:38 | 6:12/mi
23M
2:17:47
Rank: #631 (-54)
35K → 23M
8:27 | 6:45/mi
24M
2:24:26
Rank: #671 (-40)
23M → 24M
6:39 | 6:39/mi
40K· 24.85 mi
2:30:15
Rank: #698 (-27)
24M → 40K
5:49 | 6:48/mi
25.2M
2:33:00
Rank: #726 (-28)
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
2:39:55
Rank: #800 (-74)
25.2M → Finish
6:55 | 6:47/mi

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
Time1:14:34
Pace5:41 /mi
2nd Half
Distance13.11 mi
Time1:25:21
Pace6:31 /mi
📊Positive Split: 14.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:4317:375:4017:37
5:40
-
10K
6.21 mi10:35:0935:035:3817:26
5:37
-0:03
15K
9.32 mi10:52:4352:375:3917:34
5:39
+0:02
20K
12.43 mi11:10:481:10:425:4118:05
5:49
+0:10
Half
13.11 mi11:14:401:14:345:413:52
5:40
-0:09
25K
15.53 mi11:29:071:29:015:4414:27
5:58
+0:18
30K
18.64 mi11:48:481:48:425:5019:41
6:20
+0:22
20M
20.00 mi11:57:431:57:375:538:55
6:34
+0:14
21M
21.00 mi12:04:482:04:425:567:05
7:05
+0:31
35K
21.75 mi12:09:262:09:205:574:38
6:12
-0:53
23M
23.00 mi12:17:532:17:475:598:27
6:45
+0:33
24M
24.00 mi12:24:322:24:266:016:39
6:39
-0:06
40K
24.85 mi12:30:212:30:156:035:49
6:48
+0:09
25.2M
25.20 mi12:33:062:33:006:042:45
7:58
+1:10
Finish
26.22 mi12:40:012:39:556:066:55
6:47
-1:11

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

5:37 /mi

Average Pace

6:06 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:01

56% of race

Time at Steady Pace

39:53

25% of race

Time at Slower Pace

31:01

19% of race

Average Pace: 6:06 /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 mi10:17:4317:375:4017:37
5:40
#387
10K
6.21 mi10:35:0935:035:3817:26
5:37
#341
15K
9.32 mi10:52:4352:375:3917:34
5:39
#329
20K
12.43 mi11:10:481:10:425:4118:05
5:49
#362
Half
13.11 mi11:14:401:14:345:413:52
5:40
#364
25K
15.53 mi11:29:071:29:015:4414:27
5:58
#399
30K
18.64 mi11:48:481:48:425:5019:41
6:20
#480
20M
20.00 mi11:57:431:57:375:538:55
6:34
#521
21M
21.00 mi12:04:482:04:425:567:05
7:05
#570
35K
21.75 mi12:09:262:09:205:574:38
6:12
#577
23M
23.00 mi12:17:532:17:475:598:27
6:45
#631
24M
24.00 mi12:24:322:24:266:016:39
6:39
#671
40K
24.85 mi12:30:212:30:156:035:49
6:48
#698
25.2M
25.20 mi12:33:062:33:006:042:45
7:58
#726
Finish
26.22 mi12:40:012:39:556:066:55
6:47
#800
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi387354354316(Top 1%)288(Top 2%)288(Top 5%)
10K6.21 mi3.10 mi341+46311+43311+43316(Top 1%)287(Top 2%)287(Top 5%)
15K9.32 mi3.11 mi329+12300+11300+11316(Top 1%)288(Top 2%)288(Top 5%)
20K12.43 mi3.11 mi362-33333-33333-33467(Top 2%)436(Top 3%)436(Top 8%)
Half13.11 mi0.68 mi364-2335-2335-2394(Top 1%)367(Top 2%)367(Top 7%)
25K15.53 mi2.42 mi399-35367-32367-32703(Top 2%)655(Top 4%)655(Top 12%)
30K18.64 mi3.11 mi480-81444-77444-771310(Top 5%)1237(Top 8%)1237(Top 22%)
20M20.00 mi1.36 mi521-41476-32476-321839(Top 6%)1739(Top 11%)1739(Top 31%)
21M21.00 mi1.00 mi570-49525-49525-492569(Top 9%)2391(Top 15%)2391(Top 42%)
35K21.75 mi0.75 mi577-7532-7532-71175(Top 4%)1106(Top 7%)1106(Top 20%)
23M23.00 mi1.25 mi631-54584-52584-522437(Top 9%)2256(Top 14%)2256(Top 40%)
24M24.00 mi1.00 mi671-40623-39623-392683(Top 9%)2457(Top 15%)2457(Top 44%)
40K24.85 mi0.85 mi698-27649-26649-262813(Top 10%)2539(Top 16%)2539(Top 45%)
25.2M25.20 mi0.35 mi726-28677-28677-285698(Top 20%)4523(Top 28%)4523(Top 80%)
Finish26.22 mi1.02 mi800-74747-70747-704381(Top 15%)3697(Top 23%)3697(Top 66%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21stories
+97ft-345ft

Overall

316

Males

288

M18-39

288

5K→10K

3.1 - 6.2 mi

Top 1%
×5stories
+79ft-138ft

Overall

316

Males

287

M18-39

287

10K→15K

6.2 - 9.3 mi

Top 1%
×3stories
+67ft-78ft

Overall

316

Males

288

M18-39

288

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

467

Males

436

M18-39

436

20K→Half

12.4 - 13.1 mi

Top 1%
×2stories
+19ft-37ft

Overall

394

Males

367

M18-39

367

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

703

Males

655

M18-39

655

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1310

Males

1237

M18-39

1237

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1839

Males

1739

M18-39

1739

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2569

Males

2391

M18-39

2391

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1175

Males

1106

M18-39

1106

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2437

Males

2256

M18-39

2256

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2683

Males

2457

M18-39

2457

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2813

Males

2539

M18-39

2539

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5698

Males

4523

M18-39

4523

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

4381

Males

3697

M18-39

3697

Passing Analysis

Category:
Athletes Passed
119
Passed By
532
Net Change
-413
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#387
5K → 10K515+46#387#341
10K → 15K208+12#341#329
15K → 20K1043-33#329#362
20K → Half24-2#362#364
Half → 25K540-35#364#399
25K → 30K485-81#399#480
30K → 20M344-41#480#521
20M → 21M352-49#521#570
21M → 35K512-7#570#577
35K → 23M761-54#577#631
23M → 24M141-40#631#671
24M → 40K431-27#671#698
40K → 25.2M129-28#698#726
25.2M → Finish377-74#726#800
TOTALS119532-413
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing