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BOSTON MARATHON 2026

Eric Cosgrove

Bib: 31581•M

MA

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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Age Group (M18-39)
#0 / 5723
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
27:15
3.11 mi
Rank: #21536
Start → 5K
27:15 | 8:47/mi
10K
53:36
6.21 mi
Rank: #20901 (+635)
5K → 10K
26:21 | 8:29/mi
15K
1:19:16
9.32 mi
Rank: #20153 (+748)
10K → 15K
25:40 | 8:16/mi
20K
1:45:16
12.43 mi
Rank: #19750 (+403)
15K → 20K
26:00 | 8:23/mi
HALF
1:50:44
13.11 mi
Rank: #19625 (+125)
20K → HALF
5:28 | 8:02/mi
25K
2:11:30
15.53 mi
Rank: #19518 (+107)
HALF → 25K
20:46 | 8:34/mi
30K
2:39:18
18.64 mi
Rank: #19493 (+25)
25K → 30K
27:48 | 8:57/mi
20M
2:51:46
20.00 mi
Rank: #19495 (-2)
30K → 20M
12:28 | 9:11/mi
21M
3:01:36
21.00 mi
Rank: #19534 (-39)
20M → 21M
9:50 | 9:50/mi
35K
3:08:30
21.75 mi
Rank: #19598 (-64)
21M → 35K
6:54 | 9:14/mi
23M
3:20:42
23.00 mi
Rank: #19753 (-155)
35K → 23M
12:12 | 9:45/mi
24M
3:29:57
24.00 mi
Rank: #19789 (-36)
23M → 24M
9:15 | 9:15/mi
40K
3:38:02
24.85 mi
Rank: #19815 (-26)
24M → 40K
8:05 | 9:28/mi
25.2M
3:41:19
25.20 mi
Rank: #19799 (+16)
40K → 25.2M
3:17 | 9:32/mi
FINISH
3:50:08
26.22 mi
Rank: #19759 (+40)
25.2M → FINISH
8:49 | 8:40/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:50:44
Pace8:27 /mi
2nd Half
Distance13.11 mi
Time1:59:24
Pace9:07 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:1127:158:4727:15
8:47
-
10K
6.21 mi12:21:3253:368:3826:21
8:29
-0:18
15K
9.32 mi12:47:121:19:168:3125:40
8:16
-0:13
20K
12.43 mi13:13:121:45:168:2926:00
8:23
+0:07
HALF
13.11 mi13:18:401:50:448:275:28
8:02
-0:21
25K
15.53 mi13:39:262:11:308:2820:46
8:34
+0:32
30K
18.64 mi14:07:142:39:188:3327:48
8:57
+0:23
20M
20.00 mi14:19:422:51:468:3612:28
9:11
+0:14
21M
21.00 mi14:29:323:01:368:399:50
9:50
+0:39
35K
21.75 mi14:36:263:08:308:416:54
9:14
-0:36
23M
23.00 mi14:48:383:20:428:4412:12
9:45
+0:31
24M
24.00 mi14:57:533:29:578:459:15
9:15
-0:30
40K
24.85 mi15:05:583:38:028:478:05
9:28
+0:13
25.2M
25.20 mi15:09:153:41:198:473:17
9:32
+0:04
FINISH
26.22 mi15:18:043:50:088:488:49
8:40
-0:52

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

8:02 /mi

Average Pace

8:47 /mi

Slowest Pace

9:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:53:04

49% of race

Time at Steady Pace

1:07:31

29% of race

Time at Slower Pace

49:33

22% of race

Average Pace: 8:47 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:55:1127:158:4727:15
8:47
#21536
10K
6.21 mi12:21:3253:368:3826:21
8:29
#20901
15K
9.32 mi12:47:121:19:168:3125:40
8:16
#20153
20K
12.43 mi13:13:121:45:168:2926:00
8:23
#19750
HALF
13.11 mi13:18:401:50:448:275:28
8:02
#19625
25K
15.53 mi13:39:262:11:308:2820:46
8:34
#19518
30K
18.64 mi14:07:142:39:188:3327:48
8:57
#19493
20M
20.00 mi14:19:422:51:468:3612:28
9:11
#19495
21M
21.00 mi14:29:323:01:368:399:50
9:50
#19534
35K
21.75 mi14:36:263:08:308:416:54
9:14
#19598
23M
23.00 mi14:48:383:20:428:4412:12
9:45
#19753
24M
24.00 mi14:57:533:29:578:459:15
9:15
#19789
40K
24.85 mi15:05:583:38:028:478:05
9:28
#19815
25.2M
25.20 mi15:09:153:41:198:473:17
9:32
#19799
FINISH
26.22 mi15:18:043:50:088:488:49
8:40
#19759
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21536129801298018741(Top 65%)11772(Top 72%)11772(Top 206%)
10K6.21 mi3.10 mi20901+63512716+26412716+26420239(Top 70%)12432(Top 76%)12432(Top 217%)
15K9.32 mi3.11 mi20153+74812370+34612370+34618741(Top 65%)11772(Top 72%)11772(Top 206%)
20K12.43 mi3.11 mi19750+40312182+18812182+18818517(Top 64%)11636(Top 71%)11636(Top 203%)
HALF13.11 mi0.68 mi19625+12512124+5812124+5817241(Top 59%)11136(Top 68%)11136(Top 195%)
25K15.53 mi2.42 mi19518+10712072+5212072+5218950(Top 65%)11775(Top 72%)11775(Top 206%)
30K18.64 mi3.11 mi19493+2512027+4512027+4519322(Top 67%)11851(Top 73%)11851(Top 207%)
20M20.00 mi1.36 mi19495-212015+1212015+1219764(Top 68%)11999(Top 73%)11999(Top 210%)
21M21.00 mi1.00 mi19534-3912014+112014+119859(Top 68%)12009(Top 73%)12009(Top 210%)
35K21.75 mi0.75 mi19598-6412031-1712031-1720859(Top 72%)12407(Top 76%)12407(Top 217%)
23M23.00 mi1.25 mi19753-15512075-4412075-4421384(Top 74%)12625(Top 77%)12625(Top 221%)
24M24.00 mi1.00 mi19789-3612079-412079-420442(Top 70%)12100(Top 74%)12100(Top 211%)
40K24.85 mi0.85 mi19815-2612080-112080-120186(Top 70%)11948(Top 73%)11948(Top 209%)
25.2M25.20 mi0.35 mi19799+1612064+1612064+1617397(Top 60%)10621(Top 65%)10621(Top 186%)
FINISH26.22 mi1.02 mi19759+4012040+2412040+2418906(Top 65%)11326(Top 69%)11326(Top 198%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21
+97ft-345ft

Overall

18741

Males

11772

M18-39

11772

5K→10K

3.1 - 6.2 mi

Top 70%
×5
+79ft-138ft

Overall

20239

Males

12432

M18-39

12432

10K→15K

6.2 - 9.3 mi

Top 65%
×3
+67ft-78ft

Overall

18741

Males

11772

M18-39

11772

15K→20K

9.3 - 12.4 mi

Top 64%
×5
+106ft-86ft

Overall

18517

Males

11636

M18-39

11636

20K→HALF

12.4 - 13.1 mi

Top 59%
×2
+19ft-37ft

Overall

17241

Males

11136

M18-39

11136

HALF→25K

13.1 - 15.5 mi

Top 65%
×4
+66ft-88ft

Overall

18950

Males

11775

M18-39

11775

25K→30K

15.5 - 18.6 mi

Top 67%
×9
+181ft-148ft

Overall

19322

Males

11851

M18-39

11851

30K→20M

18.6 - 20.0 mi

Top 68%
×5
+64ft-50ft

Overall

19764

Males

11999

M18-39

11999

20M→21M

20.0 - 21.0 mi

Top 68%
×8
+106ft-24ft

Overall

19859

Males

12009

M18-39

12009

21M→35K

21.0 - 21.8 mi

Top 72%
×7
+17ft-86ft

Overall

20859

Males

12407

M18-39

12407

35K→23M

21.8 - 23.0 mi

Top 74%
×5
+23ft-63ft

Overall

21384

Males

12625

M18-39

12625

23M→24M

23.0 - 24.0 mi

Top 70%
×6
+12ft-82ft

Overall

20442

Males

12100

M18-39

12100

24M→40K

24.0 - 24.9 mi

Top 70%
×1
+6ft-20ft

Overall

20186

Males

11948

M18-39

11948

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1
+13ft-16ft

Overall

17397

Males

10621

M18-39

10621

25.2M→FINISH

25.2 - 26.2 mi

Top 65%
×2
+22ft-21ft

Overall

18906

Males

11326

M18-39

11326

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Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2878
Passed By
1101
Net Change
+1777
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21536
5K → 10K743108+635#21536#20901
10K → 15K76921+748#20901#20153
15K → 20K42118+403#20153#19750
20K → HALF1283+125#19750#19625
HALF → 25K16558+107#19625#19518
25K → 30K193168+25#19518#19493
30K → 20M9092-2#19493#19495
20M → 21M79118-39#19495#19534
21M → 35K3498-64#19534#19598
35K → 23M41196-155#19598#19753
23M → 24M5692-36#19753#19789
24M → 40K5278-26#19789#19815
40K → 25.2M3418+16#19815#19799
25.2M → FINISH7333+40#19799#19759
TOTALS28781101+1777

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📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing