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BOSTON MARATHON 2025

Jason Kopelman

Bib: 2448•M

IL

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:51
Rank: #3036
Start → 5K
19:51 | 6:23/mi
10K· 6.21 mi
39:43
Rank: #2999 (+37)
5K → 10K
19:52 | 6:24/mi
15K· 9.32 mi
59:36
Rank: #2964 (+35)
10K → 15K
19:53 | 6:24/mi
20K· 12.43 mi
1:19:32
Rank: #2848 (+116)
15K → 20K
19:56 | 6:25/mi
Half· 13.11 mi
1:23:53
Rank: #2852 (-4)
20K → Half
4:21 | 6:23/mi
25K· 15.53 mi
1:39:43
Rank: #2859 (-7)
Half → 25K
15:50 | 6:32/mi
30K· 18.64 mi
2:00:38
Rank: #2854 (+5)
25K → 30K
20:55 | 6:44/mi
20M
2:09:56
Rank: #2849 (+5)
30K → 20M
9:18 | 6:51/mi
21M
2:17:15
Rank: #2879 (-30)
20M → 21M
7:19 | 7:19/mi
35K· 21.75 mi
2:22:25
Rank: #2894 (-15)
21M → 35K
5:10 | 6:54/mi
23M
2:31:18
Rank: #2928 (-34)
35K → 23M
8:53 | 7:06/mi
24M
2:38:13
Rank: #2954 (-26)
23M → 24M
6:55 | 6:55/mi
40K· 24.85 mi
2:44:10
Rank: #2928 (+26)
24M → 40K
5:57 | 6:58/mi
25.2M
2:46:45
Rank: #2922 (+6)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
2:53:37
Rank: #2931 (-9)
25.2M → Finish
6:52 | 6:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:53
Pace6:24 /mi
2nd Half
Distance13.11 mi
Time1:29:44
Pace6:51 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3619:516:2319:51
6:23
-
10K
6.21 mi10:41:2839:436:2419:52
6:24
+0:01
15K
9.32 mi11:01:2159:366:2419:53
6:24
0:00
20K
12.43 mi11:21:171:19:326:2419:56
6:25
+0:01
Half
13.11 mi11:25:381:23:536:244:21
6:23
-0:02
25K
15.53 mi11:41:281:39:436:2515:50
6:32
+0:09
30K
18.64 mi12:02:232:00:386:2820:55
6:44
+0:12
20M
20.00 mi12:11:412:09:566:309:18
6:51
+0:07
21M
21.00 mi12:19:002:17:156:327:19
7:19
+0:28
35K
21.75 mi12:24:102:22:256:335:10
6:54
-0:25
23M
23.00 mi12:33:032:31:186:358:53
7:06
+0:12
24M
24.00 mi12:39:582:38:136:366:55
6:55
-0:11
40K
24.85 mi12:45:552:44:106:365:57
6:58
+0:03
25.2M
25.20 mi12:48:302:46:456:372:35
7:29
+0:31
Finish
26.22 mi12:55:222:53:376:386:52
6:44
-0:45

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

6:23 /mi

Average Pace

6:38 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:50

89% of race

Time at Steady Pace

18:47

11% of race

Time at Slower Pace

0:00

0% 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 mi10:21:3619:516:2319:51
6:23
#3036
10K
6.21 mi10:41:2839:436:2419:52
6:24
#2999
15K
9.32 mi11:01:2159:366:2419:53
6:24
#2964
20K
12.43 mi11:21:171:19:326:2419:56
6:25
#2848
Half
13.11 mi11:25:381:23:536:244:21
6:23
#2852
25K
15.53 mi11:41:281:39:436:2515:50
6:32
#2859
30K
18.64 mi12:02:232:00:386:2820:55
6:44
#2854
20M
20.00 mi12:11:412:09:566:309:18
6:51
#2849
21M
21.00 mi12:19:002:17:156:327:19
7:19
#2879
35K
21.75 mi12:24:102:22:256:335:10
6:54
#2894
23M
23.00 mi12:33:032:31:186:358:53
7:06
#2928
24M
24.00 mi12:39:582:38:136:366:55
6:55
#2954
40K
24.85 mi12:45:552:44:106:365:57
6:58
#2928
25.2M
25.20 mi12:48:302:46:456:372:35
7:29
#2922
Finish
26.22 mi12:55:222:53:376:386:52
6:44
#2931
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3036288328832931(Top 10%)2795(Top 17%)2795(Top 50%)
10K6.21 mi3.10 mi2999+372853+302853+303002(Top 11%)2858(Top 18%)2858(Top 51%)
15K9.32 mi3.11 mi2964+352823+302823+302931(Top 10%)2795(Top 17%)2795(Top 50%)
20K12.43 mi3.11 mi2848+1162715+1082715+1082609(Top 9%)2486(Top 15%)2486(Top 44%)
Half13.11 mi0.68 mi2852-42719-42719-42904(Top 10%)2771(Top 17%)2771(Top 49%)
25K15.53 mi2.42 mi2859-72726-72726-73041(Top 11%)2886(Top 18%)2886(Top 51%)
30K18.64 mi3.11 mi2854+52718+82718+83032(Top 11%)2849(Top 18%)2849(Top 50%)
20M20.00 mi1.36 mi2849+52713+52713+53162(Top 11%)2927(Top 18%)2927(Top 52%)
21M21.00 mi1.00 mi2879-302738-252738-253665(Top 13%)3347(Top 21%)3347(Top 59%)
35K21.75 mi0.75 mi2894-152747-92747-94712(Top 17%)4155(Top 26%)4155(Top 74%)
23M23.00 mi1.25 mi2928-342770-232770-234271(Top 15%)3783(Top 23%)3783(Top 67%)
24M24.00 mi1.00 mi2954-262794-242794-244141(Top 15%)3642(Top 23%)3642(Top 65%)
40K24.85 mi0.85 mi2928+262768+262768+263642(Top 13%)3212(Top 20%)3212(Top 57%)
25.2M25.20 mi0.35 mi2922+62760+82760+83293(Top 12%)2883(Top 18%)2883(Top 51%)
Finish26.22 mi1.02 mi2931-92767-72767-74091(Top 14%)3494(Top 22%)3494(Top 62%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2931

Males

2795

M18-39

2795

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3002

Males

2858

M18-39

2858

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2931

Males

2795

M18-39

2795

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2609

Males

2486

M18-39

2486

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2904

Males

2771

M18-39

2771

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3041

Males

2886

M18-39

2886

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3032

Males

2849

M18-39

2849

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3162

Males

2927

M18-39

2927

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3665

Males

3347

M18-39

3347

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4712

Males

4155

M18-39

4155

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

4271

Males

3783

M18-39

3783

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4141

Males

3642

M18-39

3642

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3642

Males

3212

M18-39

3212

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3293

Males

2883

M18-39

2883

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

4091

Males

3494

M18-39

3494

Passing Analysis

Category:
Athletes Passed
884
Passed By
779
Net Change
+105
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3036
5K → 10K147110+37#3036#2999
10K → 15K10974+35#2999#2964
15K → 20K14125+116#2964#2848
20K → Half1317-4#2848#2852
Half → 25K6471-7#2852#2859
25K → 30K113108+5#2859#2854
30K → 20M5954+5#2854#2849
20M → 21M3767-30#2849#2879
21M → 35K2641-15#2879#2894
35K → 23M4478-34#2894#2928
23M → 24M3056-26#2928#2954
24M → 40K5428+26#2954#2928
40K → 25.2M148+6#2928#2922
25.2M → Finish3342-9#2922#2931
TOTALS884779+105
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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