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BOSTON MARATHON 2025

Carlos Leiva

Bib: 3923•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 11%
Gender (Male)
#0 / 16105
Top 18%
Division (M18-39)
#0 / 5642
Top 41%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:16
Rank: #3993
Start → 5K
20:16 | 6:31/mi
10K· 6.21 mi
39:37
Rank: #2885 (+1108)
5K → 10K
19:21 | 6:14/mi
15K· 9.32 mi
59:00
Rank: #2571 (+314)
10K → 15K
19:23 | 6:14/mi
20K· 12.43 mi
1:19:11
Rank: #2683 (-112)
15K → 20K
20:11 | 6:30/mi
Half· 13.11 mi
1:23:38
Rank: #2740 (-57)
20K → Half
4:27 | 6:31/mi
25K· 15.53 mi
1:39:31
Rank: #2780 (-40)
Half → 25K
15:53 | 6:33/mi
30K· 18.64 mi
2:00:22
Rank: #2761 (+19)
25K → 30K
20:51 | 6:43/mi
20M
2:09:42
Rank: #2787 (-26)
30K → 20M
9:20 | 6:52/mi
21M
2:17:04
Rank: #2819 (-32)
20M → 21M
7:22 | 7:22/mi
35K· 21.75 mi
2:22:02
Rank: #2814 (+5)
21M → 35K
4:58 | 6:38/mi
23M
2:30:38
Rank: #2788 (+26)
35K → 23M
8:36 | 6:52/mi
24M
2:37:37
Rank: #2807 (-19)
23M → 24M
6:59 | 6:59/mi
40K· 24.85 mi
2:44:08
Rank: #2923 (-116)
24M → 40K
6:31 | 7:37/mi
25.2M
2:47:00
Rank: #2968 (-45)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
2:54:32
Rank: #3129 (-161)
25.2M → Finish
7:32 | 7:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:38
Pace6:23 /mi
2nd Half
Distance13.11 mi
Time1:30:54
Pace6:56 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:5820:166:3120:16
6:31
-
10K
6.21 mi11:06:1939:376:2319:21
6:14
-0:17
15K
9.32 mi11:25:4259:006:2019:23
6:14
0:00
20K
12.43 mi11:45:531:19:116:2220:11
6:30
+0:16
Half
13.11 mi11:50:201:23:386:234:27
6:31
+0:01
25K
15.53 mi12:06:131:39:316:2415:53
6:33
+0:02
30K
18.64 mi12:27:042:00:226:2720:51
6:43
+0:10
20M
20.00 mi12:36:242:09:426:299:20
6:52
+0:09
21M
21.00 mi12:43:462:17:046:327:22
7:22
+0:30
35K
21.75 mi12:48:442:22:026:324:58
6:38
-0:44
23M
23.00 mi12:57:202:30:386:338:36
6:52
+0:14
24M
24.00 mi13:04:192:37:376:346:59
6:59
+0:07
40K
24.85 mi13:10:502:44:086:366:31
7:37
+0:38
25.2M
25.20 mi13:13:422:47:006:382:52
8:19
+0:42
Finish
26.22 mi13:21:142:54:326:407:32
7:24
-0:55

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

6:14 /mi

Average Pace

6:40 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

38:44

22% of race

Time at Steady Pace

1:51:31

64% of race

Time at Slower Pace

24:17

14% of race

Average Pace: 6:39 /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 mi10:46:5820:166:3120:16
6:31
#3993
10K
6.21 mi11:06:1939:376:2319:21
6:14
#2885
15K
9.32 mi11:25:4259:006:2019:23
6:14
#2571
20K
12.43 mi11:45:531:19:116:2220:11
6:30
#2683
Half
13.11 mi11:50:201:23:386:234:27
6:31
#2740
25K
15.53 mi12:06:131:39:316:2415:53
6:33
#2780
30K
18.64 mi12:27:042:00:226:2720:51
6:43
#2761
20M
20.00 mi12:36:242:09:426:299:20
6:52
#2787
21M
21.00 mi12:43:462:17:046:327:22
7:22
#2819
35K
21.75 mi12:48:442:22:026:324:58
6:38
#2814
23M
23.00 mi12:57:202:30:386:338:36
6:52
#2788
24M
24.00 mi13:04:192:37:376:346:59
6:59
#2807
40K
24.85 mi13:10:502:44:086:366:31
7:37
#2923
25.2M
25.20 mi13:13:422:47:006:382:52
8:19
#2968
Finish
26.22 mi13:21:142:54:326:407:32
7:24
#3129
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3993376837682030(Top 7%)1934(Top 12%)1934(Top 34%)
10K6.21 mi3.10 mi2885+11082748+10202748+10202047(Top 7%)1950(Top 12%)1950(Top 35%)
15K9.32 mi3.11 mi2571+3142451+2972451+2972030(Top 7%)1934(Top 12%)1934(Top 34%)
20K12.43 mi3.11 mi2683-1122558-1072558-1073103(Top 11%)2946(Top 18%)2946(Top 52%)
Half13.11 mi0.68 mi2740-572614-562614-563773(Top 13%)3553(Top 22%)3553(Top 63%)
25K15.53 mi2.42 mi2780-402651-372651-373149(Top 11%)2983(Top 19%)2983(Top 53%)
30K18.64 mi3.11 mi2761+192632+192632+192939(Top 10%)2767(Top 17%)2767(Top 49%)
20M20.00 mi1.36 mi2787-262654-222654-223294(Top 12%)3045(Top 19%)3045(Top 54%)
21M21.00 mi1.00 mi2819-322684-302684-303921(Top 14%)3556(Top 22%)3556(Top 63%)
35K21.75 mi0.75 mi2814+52675+92675+93129(Top 11%)2871(Top 18%)2871(Top 51%)
23M23.00 mi1.25 mi2788+262646+292646+293034(Top 11%)2773(Top 17%)2773(Top 49%)
24M24.00 mi1.00 mi2807-192660-142660-144502(Top 16%)3895(Top 24%)3895(Top 69%)
40K24.85 mi0.85 mi2923-1162763-1032763-1037499(Top 26%)5704(Top 35%)5704(Top 101%)
25.2M25.20 mi0.35 mi2968-452803-402803-407590(Top 27%)5649(Top 35%)5649(Top 100%)
Finish26.22 mi1.02 mi3129-1612947-1442947-1448377(Top 29%)6116(Top 38%)6116(Top 108%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

2030

Males

1934

M18-39

1934

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

2047

Males

1950

M18-39

1950

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

2030

Males

1934

M18-39

1934

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

3103

Males

2946

M18-39

2946

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3773

Males

3553

M18-39

3553

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3149

Males

2983

M18-39

2983

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2939

Males

2767

M18-39

2767

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3294

Males

3045

M18-39

3045

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3921

Males

3556

M18-39

3556

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3129

Males

2871

M18-39

2871

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

3034

Males

2773

M18-39

2773

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4502

Males

3895

M18-39

3895

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7499

Males

5704

M18-39

5704

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7590

Males

5649

M18-39

5649

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

8377

Males

6116

M18-39

6116

Passing Analysis

Category:
Athletes Passed
1875
Passed By
1011
Net Change
+864
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3993
5K → 10K11091+1108#3993#2885
10K → 15K3140+314#2885#2571
15K → 20K42154-112#2571#2683
20K → Half360-57#2683#2740
Half → 25K5393-40#2740#2780
25K → 30K11899+19#2780#2761
30K → 20M4571-26#2761#2787
20M → 21M4072-32#2787#2819
21M → 35K3025+5#2819#2814
35K → 23M6034+26#2814#2788
23M → 24M3251-19#2788#2807
24M → 40K17133-116#2807#2923
40K → 25.2M449-45#2923#2968
25.2M → Finish8169-161#2968#3129
TOTALS18751011+864
📊

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