Boston Marathon logo
BOSTON MARATHON 2025

Kassoum Doumbia

Bib: 7345•M

IL

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 38%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:34
Rank: #4767
Start → 5K
20:34 | 6:37/mi
10K· 6.21 mi
41:13
Rank: #4758 (+9)
5K → 10K
20:39 | 6:39/mi
15K· 9.32 mi
1:02:07
Rank: #4911 (-153)
10K → 15K
20:54 | 6:44/mi
20K· 12.43 mi
1:23:29
Rank: #5145 (-234)
15K → 20K
21:22 | 6:53/mi
Half· 13.11 mi
1:28:04
Rank: #5143 (+2)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:44:48
Rank: #5231 (-88)
Half → 25K
16:44 | 6:54/mi
30K· 18.64 mi
2:08:24
Rank: #5878 (-647)
25K → 30K
23:36 | 7:36/mi
20M
2:19:01
Rank: #6065 (-187)
30K → 20M
10:37 | 7:49/mi
21M
2:27:48
Rank: #6312 (-247)
20M → 21M
8:47 | 8:47/mi
35K· 21.75 mi
2:33:07
Rank: #6267 (+45)
21M → 35K
5:19 | 7:06/mi
23M
2:43:23
Rank: #6438 (-171)
35K → 23M
10:16 | 8:12/mi
24M
2:51:27
Rank: #6577 (-139)
23M → 24M
8:04 | 8:04/mi
40K· 24.85 mi
2:59:12
Rank: #6939 (-362)
24M → 40K
7:45 | 9:04/mi
25.2M
3:02:18
Rank: #7000 (-61)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:10:34
Rank: #7219 (-219)
25.2M → Finish
8:16 | 8:07/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
Time1:28:04
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:42:30
Pace7:49 /mi
📊Positive Split: 16.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:2220:346:3720:34
6:37
-
10K
6.21 mi10:47:0141:136:3820:39
6:39
+0:02
15K
9.32 mi11:07:551:02:076:4020:54
6:44
+0:05
20K
12.43 mi11:29:171:23:296:4321:22
6:53
+0:09
Half
13.11 mi11:33:521:28:046:434:35
6:43
-0:10
25K
15.53 mi11:50:361:44:486:4516:44
6:54
+0:11
30K
18.64 mi12:14:122:08:246:5323:36
7:36
+0:42
20M
20.00 mi12:24:492:19:016:5710:37
7:49
+0:13
21M
21.00 mi12:33:362:27:487:028:47
8:47
+0:58
35K
21.75 mi12:38:552:33:077:025:19
7:06
-1:41
23M
23.00 mi12:49:112:43:237:0610:16
8:12
+1:06
24M
24.00 mi12:57:152:51:277:098:04
8:04
-0:08
40K
24.85 mi13:05:002:59:127:137:45
9:04
+1:00
25.2M
25.20 mi13:08:063:02:187:143:06
8:59
-0:05
Finish
26.22 mi13:16:223:10:347:168:16
8:07
-0:52

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

6:37 /mi

Average Pace

7:16 /mi

Slowest Pace

9:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:07

58% of race

Time at Steady Pace

34:13

18% of race

Time at Slower Pace

46:14

24% of race

Average Pace: 7:16 /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 mi10:26:2220:346:3720:34
6:37
#4767
10K
6.21 mi10:47:0141:136:3820:39
6:39
#4758
15K
9.32 mi11:07:551:02:076:4020:54
6:44
#4911
20K
12.43 mi11:29:171:23:296:4321:22
6:53
#5145
Half
13.11 mi11:33:521:28:046:434:35
6:43
#5143
25K
15.53 mi11:50:361:44:486:4516:44
6:54
#5231
30K
18.64 mi12:14:122:08:246:5323:36
7:36
#5878
20M
20.00 mi12:24:492:19:016:5710:37
7:49
#6065
21M
21.00 mi12:33:362:27:487:028:47
8:47
#6312
35K
21.75 mi12:38:552:33:077:025:19
7:06
#6267
23M
23.00 mi12:49:112:43:237:0610:16
8:12
#6438
24M
24.00 mi12:57:152:51:277:098:04
8:04
#6577
40K
24.85 mi13:05:002:59:127:137:45
9:04
#6939
25.2M
25.20 mi13:08:063:02:187:143:06
8:59
#7000
Finish
26.22 mi13:16:223:10:347:168:16
8:07
#7219
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4767446844685337(Top 19%)4925(Top 31%)4925(Top 87%)
10K6.21 mi3.10 mi4758+94454+144454+144841(Top 17%)4524(Top 28%)4524(Top 80%)
15K9.32 mi3.11 mi4911-1534581-1274581-1275337(Top 19%)4925(Top 31%)4925(Top 87%)
20K12.43 mi3.11 mi5145-2344771-1904771-1906014(Top 21%)5447(Top 34%)5447(Top 97%)
Half13.11 mi0.68 mi5143+24772-14772-15440(Top 19%)4995(Top 31%)4995(Top 89%)
25K15.53 mi2.42 mi5231-884833-614833-615682(Top 20%)5144(Top 32%)5144(Top 91%)
30K18.64 mi3.11 mi5878-6475345-5125345-5128403(Top 30%)6821(Top 42%)6821(Top 121%)
20M20.00 mi1.36 mi6065-1875472-1275472-1279081(Top 32%)7031(Top 44%)7031(Top 125%)
21M21.00 mi1.00 mi6312-2475653-1815653-18112153(Top 43%)8429(Top 52%)8429(Top 149%)
35K21.75 mi0.75 mi6267+455608+455608+456001(Top 21%)5058(Top 31%)5058(Top 90%)
23M23.00 mi1.25 mi6438-1715705-975705-9711330(Top 40%)7897(Top 49%)7897(Top 140%)
24M24.00 mi1.00 mi6577-1395775-705775-7011650(Top 41%)7965(Top 49%)7965(Top 141%)
40K24.85 mi0.85 mi6939-3625999-2245999-22416638(Top 59%)10190(Top 63%)10190(Top 181%)
25.2M25.20 mi0.35 mi7000-616024-256024-2511621(Top 41%)7755(Top 48%)7755(Top 137%)
Finish26.22 mi1.02 mi7219-2196144-1206144-12013624(Top 48%)8813(Top 55%)8813(Top 156%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5337

Males

4925

M18-39

4925

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4841

Males

4524

M18-39

4524

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5337

Males

4925

M18-39

4925

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

6014

Males

5447

M18-39

5447

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5440

Males

4995

M18-39

4995

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5682

Males

5144

M18-39

5144

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8403

Males

6821

M18-39

6821

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

9081

Males

7031

M18-39

7031

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

12153

Males

8429

M18-39

8429

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

6001

Males

5058

M18-39

5058

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

11330

Males

7897

M18-39

7897

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

11650

Males

7965

M18-39

7965

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16638

Males

10190

M18-39

10190

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11621

Males

7755

M18-39

7755

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

13624

Males

8813

M18-39

8813

Passing Analysis

Category:
Athletes Passed
690
Passed By
3142
Net Change
-2452
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4767
5K → 10K172163+9#4767#4758
10K → 15K61214-153#4758#4911
15K → 20K66300-234#4911#5145
20K → Half2422+2#5145#5143
Half → 25K79167-88#5143#5231
25K → 30K64711-647#5231#5878
30K → 20M32219-187#5878#6065
20M → 21M19266-247#6065#6312
21M → 35K6015+45#6312#6267
35K → 23M44215-171#6267#6438
23M → 24M32171-139#6438#6577
24M → 40K10372-362#6577#6939
40K → 25.2M1071-61#6939#7000
25.2M → Finish17236-219#7000#7219
TOTALS6903142-2452
📊

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