Boston Marathon logo
BOSTON MARATHON 2025

Clément Gourdon

Bib: 4391•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 17%
Division (M18-39)
#0 / 5642
Top 38%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:20
Rank: #1986
Start → 5K
19:20 | 6:13/mi
10K· 6.21 mi
38:53
Rank: #2167 (-181)
5K → 10K
19:33 | 6:18/mi
15K· 9.32 mi
58:28
Rank: #2212 (-45)
10K → 15K
19:35 | 6:18/mi
20K· 12.43 mi
1:18:16
Rank: #2251 (-39)
15K → 20K
19:48 | 6:22/mi
Half· 13.11 mi
1:22:33
Rank: #2253 (-2)
20K → Half
4:17 | 6:17/mi
25K· 15.53 mi
1:38:05
Rank: #2259 (-6)
Half → 25K
15:32 | 6:24/mi
30K· 18.64 mi
1:58:55
Rank: #2334 (-75)
25K → 30K
20:50 | 6:42/mi
20M
2:08:24
Rank: #2422 (-88)
30K → 20M
9:29 | 6:59/mi
21M
2:16:11
Rank: #2578 (-156)
20M → 21M
7:47 | 7:47/mi
35K· 21.75 mi
2:21:41
Rank: #2724 (-146)
21M → 35K
5:30 | 7:21/mi
23M
2:31:11
Rank: #2902 (-178)
35K → 23M
9:30 | 7:35/mi
24M
2:38:08
Rank: #2928 (-26)
23M → 24M
6:57 | 6:57/mi
40K· 24.85 mi
2:44:01
Rank: #2907 (+21)
24M → 40K
5:53 | 6:53/mi
25.2M
2:46:39
Rank: #2903 (+4)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
2:53:22
Rank: #2878 (+25)
25.2M → Finish
6:43 | 6:35/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
Time1:22:33
Pace6:18 /mi
2nd Half
Distance13.11 mi
Time1:30:49
Pace6:56 /mi
📊Positive Split: 10.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4119:206:1319:20
6:13
-
10K
6.21 mi10:42:1438:536:1519:33
6:18
+0:05
15K
9.32 mi11:01:4958:286:1619:35
6:18
0:00
20K
12.43 mi11:21:371:18:166:1819:48
6:22
+0:04
Half
13.11 mi11:25:541:22:336:184:17
6:17
-0:05
25K
15.53 mi11:41:261:38:056:1915:32
6:24
+0:07
30K
18.64 mi12:02:161:58:556:2320:50
6:42
+0:18
20M
20.00 mi12:11:452:08:246:259:29
6:59
+0:17
21M
21.00 mi12:19:322:16:116:297:47
7:47
+0:48
35K
21.75 mi12:25:022:21:416:315:30
7:21
-0:26
23M
23.00 mi12:34:322:31:116:349:30
7:35
+0:14
24M
24.00 mi12:41:292:38:086:356:57
6:57
-0:38
40K
24.85 mi12:47:222:44:016:365:53
6:53
-0:04
25.2M
25.20 mi12:50:002:46:396:372:38
7:38
+0:45
Finish
26.22 mi12:56:432:53:226:376:43
6:35
-1:03

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

6:13 /mi

Average Pace

6:37 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:05

57% of race

Time at Steady Pace

40:23

23% of race

Time at Slower Pace

34:54

20% of race

Average Pace: 6:37 /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 mi10:22:4119:206:1319:20
6:13
#1986
10K
6.21 mi10:42:1438:536:1519:33
6:18
#2167
15K
9.32 mi11:01:4958:286:1619:35
6:18
#2212
20K
12.43 mi11:21:371:18:166:1819:48
6:22
#2251
Half
13.11 mi11:25:541:22:336:184:17
6:17
#2253
25K
15.53 mi11:41:261:38:056:1915:32
6:24
#2259
30K
18.64 mi12:02:161:58:556:2320:50
6:42
#2334
20M
20.00 mi12:11:452:08:246:259:29
6:59
#2422
21M
21.00 mi12:19:322:16:116:297:47
7:47
#2578
35K
21.75 mi12:25:022:21:416:315:30
7:21
#2724
23M
23.00 mi12:34:322:31:116:349:30
7:35
#2902
24M
24.00 mi12:41:292:38:086:356:57
6:57
#2928
40K
24.85 mi12:47:222:44:016:365:53
6:53
#2907
25.2M
25.20 mi12:50:002:46:396:372:38
7:38
#2903
Finish
26.22 mi12:56:432:53:226:376:43
6:35
#2878
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1986188918892343(Top 8%)2235(Top 14%)2235(Top 40%)
10K6.21 mi3.10 mi2167-1812068-1792068-1792372(Top 8%)2269(Top 14%)2269(Top 40%)
15K9.32 mi3.11 mi2212-452112-442112-442343(Top 8%)2235(Top 14%)2235(Top 40%)
20K12.43 mi3.11 mi2251-392152-402152-402383(Top 8%)2273(Top 14%)2273(Top 40%)
Half13.11 mi0.68 mi2253-2215221522390(Top 8%)2287(Top 14%)2287(Top 41%)
25K15.53 mi2.42 mi2259-62156-42156-42398(Top 8%)2281(Top 14%)2281(Top 40%)
30K18.64 mi3.11 mi2334-752228-722228-722902(Top 10%)2733(Top 17%)2733(Top 48%)
20M20.00 mi1.36 mi2422-882310-822310-823949(Top 14%)3617(Top 22%)3617(Top 64%)
21M21.00 mi1.00 mi2578-1562457-1472457-1476053(Top 21%)5079(Top 32%)5079(Top 90%)
35K21.75 mi0.75 mi2724-1462592-1352592-1357486(Top 26%)5963(Top 37%)5963(Top 106%)
23M23.00 mi1.25 mi2902-1782749-1572749-1577125(Top 25%)5640(Top 35%)5640(Top 100%)
24M24.00 mi1.00 mi2928-262770-212770-214320(Top 15%)3772(Top 23%)3772(Top 67%)
40K24.85 mi0.85 mi2907+212749+212749+213230(Top 11%)2882(Top 18%)2882(Top 51%)
25.2M25.20 mi0.35 mi2903+42747+22747+23962(Top 14%)3378(Top 21%)3378(Top 60%)
Finish26.22 mi1.02 mi2878+252721+262721+263267(Top 12%)2875(Top 18%)2875(Top 51%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2343

Males

2235

M18-39

2235

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2372

Males

2269

M18-39

2269

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2343

Males

2235

M18-39

2235

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2383

Males

2273

M18-39

2273

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2390

Males

2287

M18-39

2287

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2398

Males

2281

M18-39

2281

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2902

Males

2733

M18-39

2733

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3949

Males

3617

M18-39

3617

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

6053

Males

5079

M18-39

5079

21M→35K

21.0 - 21.8 mi

Top 26%
×7stories
+17ft-86ft

Overall

7486

Males

5963

M18-39

5963

35K→23M

21.8 - 23.0 mi

Top 25%
×5stories
+23ft-63ft

Overall

7125

Males

5640

M18-39

5640

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4320

Males

3772

M18-39

3772

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3230

Males

2882

M18-39

2882

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3962

Males

3378

M18-39

3378

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3267

Males

2875

M18-39

2875

Passing Analysis

Category:
Athletes Passed
498
Passed By
1390
Net Change
-892
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1986
5K → 10K53234-181#1986#2167
10K → 15K5297-45#2167#2212
15K → 20K5695-39#2212#2251
20K → Half911-2#2251#2253
Half → 25K4854-6#2253#2259
25K → 30K71146-75#2259#2334
30K → 20M17105-88#2334#2422
20M → 21M18174-156#2422#2578
21M → 35K9155-146#2578#2724
35K → 23M21199-178#2724#2902
23M → 24M2955-26#2902#2928
24M → 40K5332+21#2928#2907
40K → 25.2M1612+4#2907#2903
25.2M → Finish4621+25#2903#2878
TOTALS4981390-892
📊

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