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BOSTON MARATHON 2025

Chernor A Bah

Bib: 15703•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 45%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 48%
Division (M55-59)
#0 / 1648
Top 35%
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
7:31/mi
23:21
↑ 97↓ 3451.5%
10K· 6.21 mi
7:40/mi
47:11
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:11:10
↑ 67↓ 78
20K· 12.43 mi
7:52/mi
1:35:35
↑ 106↓ 860.1%
Half· 13.11 mi
7:46/mi
1:40:53
↑ 19↓ 370.5%
25K· 15.53 mi
7:56/mi
2:00:07
↑ 66↓ 880.2%
30K· 18.64 mi
8:10/mi
2:25:29
↑ 181↓ 1480.2%
20M
8:09/mi
2:36:34
↑ 64↓ 500.2%
21M
8:50/mi
2:45:24
↑ 106↓ 241.6%
35K· 21.75 mi
8:03/mi
2:51:25
↑ 17↓ 861.7%
23M
8:18/mi
3:01:48
↑ 23↓ 630.6%
24M
8:34/mi
3:10:22
↓ 821.3%
40K· 24.85 mi
8:29/mi
3:17:37
↓ 200.3%
25.2M
9:08/mi
3:20:46
↑ 13↓ 160.2%
Finish· 26.22 mi
7:44/mi
3:28:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:53
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time1:47:46
Pace8:13 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1623:217:3123:21
7:31
-
10K
6.21 mi11:19:0647:117:3623:50
7:40
+0:09
15K
9.32 mi11:43:051:11:107:3823:59
7:43
+0:03
20K
12.43 mi12:07:301:35:357:4124:25
7:52
+0:09
Half
13.11 mi12:12:481:40:537:425:18
7:46
-0:06
25K
15.53 mi12:32:022:00:077:4419:14
7:56
+0:10
30K
18.64 mi12:57:242:25:297:4825:22
8:10
+0:14
20M
20.00 mi13:08:292:36:347:5011:05
8:09
-0:01
21M
21.00 mi13:17:192:45:247:538:50
8:50
+0:41
35K
21.75 mi13:23:202:51:257:536:01
8:03
-0:47
23M
23.00 mi13:33:433:01:487:5410:23
8:18
+0:15
24M
24.00 mi13:42:173:10:227:568:34
8:34
+0:16
40K
24.85 mi13:49:323:17:377:577:15
8:29
-0:05
25.2M
25.20 mi13:52:413:20:467:583:09
9:08
+0:39
Finish
26.22 mi14:00:343:28:397:587:53
7:44
-1:24

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

7:31 /mi

Average Pace

7:58 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:21

40% of race

Time at Steady Pace

1:26:07

41% of race

Time at Slower Pace

38:11

18% of race

Average Pace: 7:57 /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 mi10:55:1623:217:3123:21
7:31
#12378
10K
6.21 mi11:19:0647:117:3623:50
7:40
#12977
15K
9.32 mi11:43:051:11:107:3823:59
7:43
#13176
20K
12.43 mi12:07:301:35:357:4124:25
7:52
#13286
Half
13.11 mi12:12:481:40:537:425:18
7:46
#13312
25K
15.53 mi12:32:022:00:077:4419:14
7:56
#13284
30K
18.64 mi12:57:242:25:297:4825:22
8:10
#13123
20M
20.00 mi13:08:292:36:347:5011:05
8:09
#12966
21M
21.00 mi13:17:192:45:247:538:50
8:50
#12907
35K
21.75 mi13:23:202:51:257:536:01
8:03
#12876
23M
23.00 mi13:33:433:01:487:5410:23
8:18
#12794
24M
24.00 mi13:42:173:10:227:568:34
8:34
#12888
40K
24.85 mi13:49:323:17:377:577:15
8:29
#12902
25.2M
25.20 mi13:52:413:20:467:583:09
9:08
#12890
Finish
26.22 mi14:00:343:28:397:587:53
7:44
#12801
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi123789342934213678(Top 48%)9804(Top 61%)9804(Top 595%)
10K6.21 mi3.10 mi12977-5999617-2759617-27513621(Top 48%)9846(Top 61%)9846(Top 597%)
15K9.32 mi3.11 mi13176-1999640-239640-2313678(Top 48%)9804(Top 61%)9804(Top 595%)
20K12.43 mi3.11 mi13286-1109652-129652-1213742(Top 48%)9750(Top 61%)9750(Top 592%)
Half13.11 mi0.68 mi13312-269657-59657-513912(Top 49%)9856(Top 61%)9856(Top 598%)
25K15.53 mi2.42 mi13284+289601+569601+5613337(Top 47%)9445(Top 59%)9445(Top 573%)
30K18.64 mi3.11 mi13123+1619463+1389463+13812550(Top 44%)8927(Top 55%)8927(Top 542%)
20M20.00 mi1.36 mi12966+1579374+899374+8911502(Top 40%)8291(Top 51%)8291(Top 503%)
21M21.00 mi1.00 mi12907+599313+619313+6112485(Top 44%)8603(Top 53%)8603(Top 522%)
35K21.75 mi0.75 mi12876+319285+289285+2812508(Top 44%)8569(Top 53%)8569(Top 520%)
23M23.00 mi1.25 mi12794+829212+739212+7311988(Top 42%)8226(Top 51%)8226(Top 499%)
24M24.00 mi1.00 mi12888-949214-29214-214904(Top 52%)9531(Top 59%)9531(Top 578%)
40K24.85 mi0.85 mi12902-149187+279187+2713275(Top 47%)8650(Top 54%)8650(Top 525%)
25.2M25.20 mi0.35 mi12890+129173+149173+1412504(Top 44%)8233(Top 51%)8233(Top 500%)
Finish26.22 mi1.02 mi12801+899114+599114+5910951(Top 39%)7490(Top 47%)7490(Top 454%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

13678

Males

9804

M55-59

9804

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

13621

Males

9846

M55-59

9846

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

13678

Males

9804

M55-59

9804

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

13742

Males

9750

M55-59

9750

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13912

Males

9856

M55-59

9856

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

13337

Males

9445

M55-59

9445

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

12550

Males

8927

M55-59

8927

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

11502

Males

8291

M55-59

8291

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12485

Males

8603

M55-59

8603

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

12508

Males

8569

M55-59

8569

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11988

Males

8226

M55-59

8226

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

14904

Males

9531

M55-59

9531

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13275

Males

8650

M55-59

8650

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12504

Males

8233

M55-59

8233

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

10951

Males

7490

M55-59

7490

Passing Analysis

Category:
Athletes Passed
1717
Passed By
2140
Net Change
-423
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12378
5K → 10K80679-599#12378#12977
10K → 15K135334-199#12977#13176
15K → 20K166276-110#13176#13286
20K → Half2753-26#13286#13312
Half → 25K179151+28#13312#13284
25K → 30K317156+161#13284#13123
30K → 20M19639+157#13123#12966
20M → 21M12768+59#12966#12907
21M → 35K6433+31#12907#12876
35K → 23M14361+82#12876#12794
23M → 24M54148-94#12794#12888
24M → 40K6680-14#12888#12902
40K → 25.2M3826+12#12902#12890
25.2M → Finish12536+89#12890#12801
TOTALS17172140-423
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing