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BOSTON MARATHON 2025

Marlin Ulín Pérez

Bib: 2360•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 5%
Gender (Male)
#0 / 16105
Top 9%
Division (M18-39)
#0 / 5642
Top 22%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:27
Rank: #2193
Start → 5K
19:27 | 6:16/mi
10K· 6.21 mi
38:32
Rank: #1876 (+317)
5K → 10K
19:05 | 6:09/mi
15K· 9.32 mi
57:57
Rank: #1927 (-51)
10K → 15K
19:25 | 6:15/mi
20K· 12.43 mi
1:17:39
Rank: #1982 (-55)
15K → 20K
19:42 | 6:20/mi
Half· 13.11 mi
1:21:53
Rank: #1985 (-3)
20K → Half
4:14 | 6:12/mi
25K· 15.53 mi
1:37:11
Rank: #1960 (+25)
Half → 25K
15:18 | 6:19/mi
30K· 18.64 mi
1:57:15
Rank: #1896 (+64)
25K → 30K
20:04 | 6:28/mi
20M
2:06:02
Rank: #1840 (+56)
30K → 20M
8:47 | 6:28/mi
21M
2:12:55
Rank: #1801 (+39)
20M → 21M
6:53 | 6:53/mi
35K· 21.75 mi
2:17:29
Rank: #1747 (+54)
21M → 35K
4:34 | 6:06/mi
23M
2:25:30
Rank: #1670 (+77)
35K → 23M
8:01 | 6:24/mi
24M
2:31:43
Rank: #1597 (+73)
23M → 24M
6:13 | 6:13/mi
40K· 24.85 mi
2:37:06
Rank: #1535 (+62)
24M → 40K
5:23 | 6:18/mi
25.2M
2:39:30
Rank: #1530 (+5)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:45:58
Rank: #1527 (+3)
25.2M → Finish
6:28 | 6:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:53
Pace6:15 /mi
2nd Half
Distance13.11 mi
Time1:24:05
Pace6:25 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1019:276:1619:27
6:16
-
10K
6.21 mi10:40:1538:326:1219:05
6:09
-0:07
15K
9.32 mi10:59:4057:576:1319:25
6:15
+0:06
20K
12.43 mi11:19:221:17:396:1519:42
6:20
+0:05
Half
13.11 mi11:23:361:21:536:154:14
6:12
-0:08
25K
15.53 mi11:38:541:37:116:1515:18
6:19
+0:07
30K
18.64 mi11:58:581:57:156:1720:04
6:28
+0:09
20M
20.00 mi12:07:452:06:026:188:47
6:28
0:00
21M
21.00 mi12:14:382:12:556:206:53
6:53
+0:25
35K
21.75 mi12:19:122:17:296:194:34
6:06
-0:47
23M
23.00 mi12:27:132:25:306:208:01
6:24
+0:18
24M
24.00 mi12:33:262:31:436:196:13
6:13
-0:11
40K
24.85 mi12:38:492:37:066:195:23
6:18
+0:05
25.2M
25.20 mi12:41:132:39:306:202:24
6:58
+0:40
Finish
26.22 mi12:47:412:45:586:206:28
6:21
-0:37

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

6:06 /mi

Average Pace

6:20 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:41

94% of race

Time at Steady Pace

9:17

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:20 /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 mi10:21:1019:276:1619:27
6:16
#2193
10K
6.21 mi10:40:1538:326:1219:05
6:09
#1876
15K
9.32 mi10:59:4057:576:1319:25
6:15
#1927
20K
12.43 mi11:19:221:17:396:1519:42
6:20
#1982
Half
13.11 mi11:23:361:21:536:154:14
6:12
#1985
25K
15.53 mi11:38:541:37:116:1515:18
6:19
#1960
30K
18.64 mi11:58:581:57:156:1720:04
6:28
#1896
20M
20.00 mi12:07:452:06:026:188:47
6:28
#1840
21M
21.00 mi12:14:382:12:556:206:53
6:53
#1801
35K
21.75 mi12:19:122:17:296:194:34
6:06
#1747
23M
23.00 mi12:27:132:25:306:208:01
6:24
#1670
24M
24.00 mi12:33:262:31:436:196:13
6:13
#1597
40K
24.85 mi12:38:492:37:066:195:23
6:18
#1535
25.2M
25.20 mi12:41:132:39:306:202:24
6:58
#1530
Finish
26.22 mi12:47:412:45:586:206:28
6:21
#1527
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2193209420942091(Top 7%)1994(Top 12%)1994(Top 35%)
10K6.21 mi3.10 mi1876+3171785+3091785+3091644(Top 6%)1565(Top 10%)1565(Top 28%)
15K9.32 mi3.11 mi1927-511833-481833-482091(Top 7%)1994(Top 12%)1994(Top 35%)
20K12.43 mi3.11 mi1982-551892-591892-592215(Top 8%)2110(Top 13%)2110(Top 37%)
Half13.11 mi0.68 mi1985-31895-31895-31970(Top 7%)1879(Top 12%)1879(Top 33%)
25K15.53 mi2.42 mi1960+251870+251870+251898(Top 7%)1804(Top 11%)1804(Top 32%)
30K18.64 mi3.11 mi1896+641806+641806+641801(Top 6%)1712(Top 11%)1712(Top 30%)
20M20.00 mi1.36 mi1840+561750+561750+561484(Top 5%)1402(Top 9%)1402(Top 25%)
21M21.00 mi1.00 mi1801+391711+391711+391806(Top 6%)1701(Top 11%)1701(Top 30%)
35K21.75 mi0.75 mi1747+541657+541657+54977(Top 3%)920(Top 6%)920(Top 16%)
23M23.00 mi1.25 mi1670+771580+771580+771147(Top 4%)1083(Top 7%)1083(Top 19%)
24M24.00 mi1.00 mi1597+731511+691511+691077(Top 4%)1013(Top 6%)1013(Top 18%)
40K24.85 mi0.85 mi1535+621450+611450+61962(Top 3%)901(Top 6%)901(Top 16%)
25.2M25.20 mi0.35 mi1530+51446+41446+41351(Top 5%)1238(Top 8%)1238(Top 22%)
Finish26.22 mi1.02 mi1527+31444+21444+22060(Top 7%)1887(Top 12%)1887(Top 33%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

2091

Males

1994

M18-39

1994

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1644

Males

1565

M18-39

1565

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

2091

Males

1994

M18-39

1994

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2215

Males

2110

M18-39

2110

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1970

Males

1879

M18-39

1879

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1898

Males

1804

M18-39

1804

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1801

Males

1712

M18-39

1712

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1484

Males

1402

M18-39

1402

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1806

Males

1701

M18-39

1701

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

977

Males

920

M18-39

920

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1147

Males

1083

M18-39

1083

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1077

Males

1013

M18-39

1013

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

962

Males

901

M18-39

901

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1351

Males

1238

M18-39

1238

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

2060

Males

1887

M18-39

1887

Passing Analysis

Category:
Athletes Passed
1042
Passed By
376
Net Change
+666
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2193
5K → 10K33720+317#2193#1876
10K → 15K3788-51#1876#1927
15K → 20K48103-55#1927#1982
20K → Half811-3#1982#1985
Half → 25K5833+25#1985#1960
25K → 30K10743+64#1960#1896
30K → 20M6812+56#1896#1840
20M → 21M5516+39#1840#1801
21M → 35K540+54#1801#1747
35K → 23M8811+77#1747#1670
23M → 24M774+73#1670#1597
24M → 40K664+62#1597#1535
40K → 25.2M127+5#1535#1530
25.2M → Finish2724+3#1530#1527
TOTALS1042376+666
📊

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