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BOSTON MARATHON 2025

Victor Lei

Bib: 30513•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
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
8:57/mi
27:47
↑ 97↓ 3451.5%
10K· 6.21 mi
9:16/mi
56:35
↑ 79↓ 1380.4%
15K· 9.32 mi
9:35/mi
1:26:22
↑ 67↓ 78
20K· 12.43 mi
9:51/mi
1:56:57
↑ 106↓ 860.1%
Half· 13.11 mi
9:37/mi
2:03:31
↑ 19↓ 370.5%
25K· 15.53 mi
10:23/mi
2:28:42
↑ 66↓ 880.2%
30K· 18.64 mi
10:34/mi
3:01:33
↑ 181↓ 1480.2%
20M
10:28/mi
3:15:46
↑ 64↓ 500.2%
21M
11:17/mi
3:27:03
↑ 106↓ 241.6%
35K· 21.75 mi
10:00/mi
3:34:32
↑ 17↓ 861.7%
23M
10:25/mi
3:47:34
↑ 23↓ 630.6%
24M
10:18/mi
3:57:52
↓ 821.3%
40K· 24.85 mi
10:15/mi
4:06:38
↓ 200.3%
25.2M
11:16/mi
4:10:31
↑ 13↓ 160.2%
Finish· 26.22 mi
10:00/mi
4:20:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:31
Pace9:25 /mi
2nd Half
Distance13.11 mi
Time2:17:11
Pace10:28 /mi
📊Positive Split: 11.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:3827:478:5727:47
8:57
-
10K
6.21 mi12:16:2656:359:0628:48
9:16
+0:19
15K
9.32 mi12:46:131:26:229:1629:47
9:35
+0:19
20K
12.43 mi13:16:481:56:579:2530:35
9:51
+0:16
Half
13.11 mi13:23:222:03:319:256:34
9:37
-0:14
25K
15.53 mi13:48:332:28:429:3425:11
10:23
+0:46
30K
18.64 mi14:21:243:01:339:4432:51
10:34
+0:11
20M
20.00 mi14:35:373:15:469:4714:13
10:28
-0:06
21M
21.00 mi14:46:543:27:039:5211:17
11:17
+0:49
35K
21.75 mi14:54:233:34:329:527:29
10:00
-1:17
23M
23.00 mi15:07:253:47:349:5413:02
10:25
+0:25
24M
24.00 mi15:17:433:57:529:5510:18
10:18
-0:07
40K
24.85 mi15:26:294:06:389:558:46
10:15
-0:03
25.2M
25.20 mi15:30:224:10:319:563:53
11:16
+1:01
Finish
26.22 mi15:40:334:20:429:5710:11
10:00
-1:16

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

8:57 /mi

Average Pace

9:57 /mi

Slowest Pace

11:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:31

47% of race

Time at Steady Pace

1:29:10

34% of race

Time at Slower Pace

48:01

18% of race

Average Pace: 9:57 /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 mi11:47:3827:478:5727:47
8:57
#22176
10K
6.21 mi12:16:2656:359:0628:48
9:16
#22833
15K
9.32 mi12:46:131:26:229:1629:47
9:35
#23326
20K
12.43 mi13:16:481:56:579:2530:35
9:51
#23499
Half
13.11 mi13:23:222:03:319:256:34
9:37
#23527
25K
15.53 mi13:48:332:28:429:3425:11
10:23
#23616
30K
18.64 mi14:21:243:01:339:4432:51
10:34
#23501
20M
20.00 mi14:35:373:15:469:4714:13
10:28
#23393
21M
21.00 mi14:46:543:27:039:5211:17
11:17
#23307
35K
21.75 mi14:54:233:34:329:527:29
10:00
#23267
23M
23.00 mi15:07:253:47:349:5413:02
10:25
#23184
24M
24.00 mi15:17:433:57:529:5510:18
10:18
#23131
40K
24.85 mi15:26:294:06:389:558:46
10:15
#23051
25.2M
25.20 mi15:30:224:10:319:563:53
11:16
#23035
Finish
26.22 mi15:40:334:20:429:5710:11
10:00
#23033
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22176133921339223971(Top 84%)14258(Top 89%)14258(Top 253%)
10K6.21 mi3.10 mi22833-65713707-31513707-31523420(Top 82%)13990(Top 87%)13990(Top 248%)
15K9.32 mi3.11 mi23326-49313959-25213959-25223971(Top 84%)14258(Top 89%)14258(Top 253%)
20K12.43 mi3.11 mi23499-17314033-7414033-7423866(Top 84%)14167(Top 88%)14167(Top 251%)
Half13.11 mi0.68 mi23527-2814046-1314046-1323894(Top 84%)14184(Top 88%)14184(Top 251%)
25K15.53 mi2.42 mi23616-8914067-2114067-2124150(Top 85%)14259(Top 89%)14259(Top 253%)
30K18.64 mi3.11 mi23501+11513982+8513982+8523100(Top 81%)13663(Top 85%)13663(Top 242%)
20M20.00 mi1.36 mi23393+10813917+6513917+6522308(Top 79%)13190(Top 82%)13190(Top 234%)
21M21.00 mi1.00 mi23307+8613853+6413853+6422113(Top 78%)13027(Top 81%)13027(Top 231%)
35K21.75 mi0.75 mi23267+4013821+3213821+3221900(Top 77%)12853(Top 80%)12853(Top 228%)
23M23.00 mi1.25 mi23184+8313757+6413757+6421759(Top 77%)12755(Top 79%)12755(Top 226%)
24M24.00 mi1.00 mi23131+5313707+5013707+5022235(Top 78%)12922(Top 80%)12922(Top 229%)
40K24.85 mi0.85 mi23051+8013656+5113656+5121237(Top 75%)12401(Top 77%)12401(Top 220%)
25.2M25.20 mi0.35 mi23035+1613646+1013646+1021405(Top 75%)12494(Top 78%)12494(Top 221%)
Finish26.22 mi1.02 mi23033+213637+913637+922916(Top 81%)13232(Top 82%)13232(Top 235%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

23971

Males

14258

M18-39

14258

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

23420

Males

13990

M18-39

13990

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

23971

Males

14258

M18-39

14258

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

23866

Males

14167

M18-39

14167

20K→Half

12.4 - 13.1 mi

Top 84%
×2story building
+19ft-37ft

Overall

23894

Males

14184

M18-39

14184

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

24150

Males

14259

M18-39

14259

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

23100

Males

13663

M18-39

13663

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

22308

Males

13190

M18-39

13190

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

22113

Males

13027

M18-39

13027

21M→35K

21.0 - 21.8 mi

Top 77%
×7story building
+17ft-86ft

Overall

21900

Males

12853

M18-39

12853

35K→23M

21.8 - 23.0 mi

Top 77%
×5story building
+23ft-63ft

Overall

21759

Males

12755

M18-39

12755

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

22235

Males

12922

M18-39

12922

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21237

Males

12401

M18-39

12401

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

21405

Males

12494

M18-39

12494

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

22916

Males

13232

M18-39

13232

Passing Analysis

Category:
Athletes Passed
1210
Passed By
2067
Net Change
-857
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22176
5K → 10K74731-657#22176#22833
10K → 15K52545-493#22833#23326
15K → 20K102275-173#23326#23499
20K → Half1745-28#23499#23527
Half → 25K96185-89#23527#23616
25K → 30K216101+115#23616#23501
30K → 20M13325+108#23501#23393
20M → 21M11428+86#23393#23307
21M → 35K6020+40#23307#23267
35K → 23M11330+83#23267#23184
23M → 24M7623+53#23184#23131
24M → 40K9616+80#23131#23051
40K → 25.2M259+16#23051#23035
25.2M → Finish3634+2#23035#23033
TOTALS12102067-857
📊

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