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BOSTON MARATHON 2025

David Bell

Bib: 26825•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 50%
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
8:25/mi
26:08
↑ 97↓ 3451.5%
10K· 6.21 mi
7:54/mi
50:40
↑ 79↓ 1380.4%
15K· 9.32 mi
7:56/mi
1:15:20
↑ 67↓ 78
20K· 12.43 mi
8:00/mi
1:40:12
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:45:28
↑ 19↓ 370.5%
25K· 15.53 mi
8:11/mi
2:05:18
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:29:48
↑ 181↓ 1480.2%
20M
7:44/mi
2:40:18
↑ 64↓ 500.2%
21M
8:22/mi
2:48:40
↑ 106↓ 241.6%
35K· 21.75 mi
8:08/mi
2:54:45
↑ 17↓ 861.7%
23M
9:33/mi
3:06:43
↑ 23↓ 630.6%
24M
8:10/mi
3:14:53
↓ 821.3%
40K· 24.85 mi
8:44/mi
3:22:21
↓ 200.3%
25.2M
9:08/mi
3:25:30
↑ 13↓ 160.2%
Finish· 26.22 mi
7:58/mi
3:33:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:28
Pace8:03 /mi
2nd Half
Distance13.11 mi
Time1:48:09
Pace8:15 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:0026:088:2526:08
8:25
-
10K
6.21 mi12:07:3250:408:0924:32
7:54
-0:31
15K
9.32 mi12:32:121:15:208:0524:40
7:56
+0:02
20K
12.43 mi12:57:041:40:128:0424:52
8:00
+0:04
Half
13.11 mi13:02:201:45:288:035:16
7:43
-0:17
25K
15.53 mi13:22:102:05:188:0419:50
8:11
+0:28
30K
18.64 mi13:46:402:29:488:0224:30
7:53
-0:18
20M
20.00 mi13:57:102:40:188:0110:30
7:44
-0:09
21M
21.00 mi14:05:322:48:408:028:22
8:22
+0:38
35K
21.75 mi14:11:372:54:458:026:05
8:08
-0:14
23M
23.00 mi14:23:353:06:438:0711:58
9:33
+1:25
24M
24.00 mi14:31:453:14:538:078:10
8:10
-1:23
40K
24.85 mi14:39:133:22:218:087:28
8:44
+0:34
25.2M
25.20 mi14:42:223:25:308:093:09
9:08
+0:24
Finish
26.22 mi14:50:293:33:378:098:07
7:58
-1:10

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

7:43 /mi

Average Pace

8:09 /mi

Slowest Pace

9:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

15:46

7% of race

Time at Steady Pace

2:29:08

70% of race

Time at Slower Pace

48:43

23% of race

Average Pace: 8:09 /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 mi11:43:0026:088:2526:08
8:25
#19365
10K
6.21 mi12:07:3250:408:0924:32
7:54
#17655
15K
9.32 mi12:32:121:15:208:0524:40
7:56
#16938
20K
12.43 mi12:57:041:40:128:0424:52
8:00
#16398
Half
13.11 mi13:02:201:45:288:035:16
7:43
#16258
25K
15.53 mi13:22:102:05:188:0419:50
8:11
#16069
30K
18.64 mi13:46:402:29:488:0224:30
7:53
#15008
20M
20.00 mi13:57:102:40:188:0110:30
7:44
#14447
21M
21.00 mi14:05:322:48:408:028:22
8:22
#14106
35K
21.75 mi14:11:372:54:458:026:05
8:08
#14059
23M
23.00 mi14:23:353:06:438:0711:58
9:33
#14450
24M
24.00 mi14:31:453:14:538:078:10
8:10
#14336
40K
24.85 mi14:39:133:22:218:087:28
8:44
#14330
25.2M
25.20 mi14:42:223:25:308:093:09
9:08
#14290
Finish
26.22 mi14:50:293:33:378:098:07
7:58
#14192
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi19365121841218415546(Top 55%)10614(Top 66%)10614(Top 188%)
10K6.21 mi3.10 mi17655+171011476+70811476+70815623(Top 55%)10676(Top 66%)10676(Top 189%)
15K9.32 mi3.11 mi16938+71711203+27311203+27315546(Top 55%)10614(Top 66%)10614(Top 188%)
20K12.43 mi3.11 mi16398+54010974+22910974+22914949(Top 53%)10286(Top 64%)10286(Top 182%)
Half13.11 mi0.68 mi16258+14010899+7510899+7513520(Top 48%)9708(Top 60%)9708(Top 172%)
25K15.53 mi2.42 mi16069+18910819+8010819+8015155(Top 53%)10292(Top 64%)10292(Top 182%)
30K18.64 mi3.11 mi15008+106110290+52910290+52910530(Top 37%)7955(Top 49%)7955(Top 141%)
20M20.00 mi1.36 mi14447+56110013+27710013+2778551(Top 30%)6769(Top 42%)6769(Top 120%)
21M21.00 mi1.00 mi14106+3419839+1749839+1749644(Top 34%)7187(Top 45%)7187(Top 127%)
35K21.75 mi0.75 mi14059+479801+389801+3813131(Top 46%)8867(Top 55%)8867(Top 157%)
23M23.00 mi1.25 mi14450-3919949-1489949-14818908(Top 67%)11393(Top 71%)11393(Top 202%)
24M24.00 mi1.00 mi14336+1149869+809869+8012338(Top 43%)8346(Top 52%)8346(Top 148%)
40K24.85 mi0.85 mi14330+69833+369833+3614784(Top 52%)9339(Top 58%)9339(Top 166%)
25.2M25.20 mi0.35 mi14290+409803+309803+3012527(Top 44%)8255(Top 51%)8255(Top 146%)
Finish26.22 mi1.02 mi14192+989739+649739+6412641(Top 45%)8359(Top 52%)8359(Top 148%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

15546

Males

10614

M18-39

10614

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

15623

Males

10676

M18-39

10676

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

15546

Males

10614

M18-39

10614

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

14949

Males

10286

M18-39

10286

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13520

Males

9708

M18-39

9708

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

15155

Males

10292

M18-39

10292

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

10530

Males

7955

M18-39

7955

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

8551

Males

6769

M18-39

6769

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

9644

Males

7187

M18-39

7187

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

13131

Males

8867

M18-39

8867

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

18908

Males

11393

M18-39

11393

23M→24M

23.0 - 24.0 mi

Top 43%
×6story building
+12ft-82ft

Overall

12338

Males

8346

M18-39

8346

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14784

Males

9339

M18-39

9339

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12527

Males

8255

M18-39

8255

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

12641

Males

8359

M18-39

8359

Passing Analysis

Category:
Athletes Passed
5878
Passed By
705
Net Change
+5173
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19365
5K → 10K17166+1710#19365#17655
10K → 15K73417+717#17655#16938
15K → 20K56323+540#16938#16398
20K → Half1411+140#16398#16258
Half → 25K25263+189#16258#16069
25K → 30K10610+1061#16069#15008
30K → 20M5610+561#15008#14447
20M → 21M3454+341#14447#14106
21M → 35K8134+47#14106#14059
35K → 23M36427-391#14059#14450
23M → 24M13420+114#14450#14336
24M → 40K7468+6#14336#14330
40K → 25.2M5313+40#14330#14290
25.2M → Finish12729+98#14290#14192
TOTALS5878705+5173
📊

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