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BOSTON MARATHON 2025

James Romero

Bib: 5256•M

NM

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 16%
Gender (Male)
#0 / 16105
Top 26%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:17
Rank: #1916
Start → 5K
19:17 | 6:12/mi
10K· 6.21 mi
39:06
Rank: #2366 (-450)
5K → 10K
19:49 | 6:23/mi
15K· 9.32 mi
58:46
Rank: #2416 (-50)
10K → 15K
19:40 | 6:20/mi
20K· 12.43 mi
1:18:47
Rank: #2490 (-74)
15K → 20K
20:01 | 6:27/mi
Half· 13.11 mi
1:23:07
Rank: #2505 (-15)
20K → Half
4:20 | 6:21/mi
25K· 15.53 mi
1:38:57
Rank: #2575 (-70)
Half → 25K
15:50 | 6:32/mi
30K· 18.64 mi
2:01:15
Rank: #3076 (-501)
25K → 30K
22:18 | 7:11/mi
20M
2:12:21
Rank: #3591 (-515)
30K → 20M
11:06 | 8:10/mi
21M
2:20:36
Rank: #3822 (-231)
20M → 21M
8:15 | 8:15/mi
35K· 21.75 mi
2:26:08
Rank: #3941 (-119)
21M → 35K
5:32 | 7:24/mi
23M
2:35:47
Rank: #4181 (-240)
35K → 23M
9:39 | 7:42/mi
24M
2:43:18
Rank: #4344 (-163)
23M → 24M
7:31 | 7:31/mi
40K· 24.85 mi
2:49:44
Rank: #4451 (-107)
24M → 40K
6:26 | 7:31/mi
25.2M
2:52:37
Rank: #4534 (-83)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
2:59:46
Rank: #4620 (-86)
25.2M → Finish
7:09 | 7:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:07
Pace6:20 /mi
2nd Half
Distance13.11 mi
Time1:36:39
Pace7:22 /mi
📊Positive Split: 16.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2619:176:1219:17
6:12
-
10K
6.21 mi10:42:1539:066:1819:49
6:23
+0:11
15K
9.32 mi11:01:5558:466:1819:40
6:20
-0:03
20K
12.43 mi11:21:561:18:476:2020:01
6:27
+0:07
Half
13.11 mi11:26:161:23:076:204:20
6:21
-0:06
25K
15.53 mi11:42:061:38:576:2215:50
6:32
+0:11
30K
18.64 mi12:04:242:01:156:3022:18
7:11
+0:39
20M
20.00 mi12:15:302:12:216:3711:06
8:10
+0:59
21M
21.00 mi12:23:452:20:366:428:15
8:15
+0:05
35K
21.75 mi12:29:172:26:086:435:32
7:24
-0:51
23M
23.00 mi12:38:562:35:476:469:39
7:42
+0:18
24M
24.00 mi12:46:272:43:186:487:31
7:31
-0:11
40K
24.85 mi12:52:532:49:446:506:26
7:31
0:00
25.2M
25.20 mi12:55:462:52:376:512:53
8:22
+0:51
Finish
26.22 mi13:02:552:59:466:527:09
7:01
-1:21

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

6:12 /mi

Average Pace

6:52 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:57

55% of race

Time at Steady Pace

48:56

27% of race

Time at Slower Pace

31:53

18% of race

Average Pace: 6:51 /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 mi10:22:2619:176:1219:17
6:12
#1916
10K
6.21 mi10:42:1539:066:1819:49
6:23
#2366
15K
9.32 mi11:01:5558:466:1819:40
6:20
#2416
20K
12.43 mi11:21:561:18:476:2020:01
6:27
#2490
Half
13.11 mi11:26:161:23:076:204:20
6:21
#2505
25K
15.53 mi11:42:061:38:576:2215:50
6:32
#2575
30K
18.64 mi12:04:242:01:156:3022:18
7:11
#3076
20M
20.00 mi12:15:302:12:216:3711:06
8:10
#3591
21M
21.00 mi12:23:452:20:366:428:15
8:15
#3822
35K
21.75 mi12:29:172:26:086:435:32
7:24
#3941
23M
23.00 mi12:38:562:35:476:469:39
7:42
#4181
24M
24.00 mi12:46:272:43:186:487:31
7:31
#4344
40K
24.85 mi12:52:532:49:446:506:26
7:31
#4451
25.2M
25.20 mi12:55:462:52:376:512:53
8:22
#4534
Finish
26.22 mi13:02:552:59:466:527:09
7:01
#4620
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1916182218222539(Top 9%)2424(Top 15%)2424(Top 43%)
10K6.21 mi3.10 mi2366-4502257-4352257-4352911(Top 10%)2772(Top 17%)2772(Top 49%)
15K9.32 mi3.11 mi2416-502307-502307-502539(Top 9%)2424(Top 15%)2424(Top 43%)
20K12.43 mi3.11 mi2490-742376-692376-692787(Top 10%)2654(Top 16%)2654(Top 47%)
Half13.11 mi0.68 mi2505-152392-162392-162848(Top 10%)2724(Top 17%)2724(Top 48%)
25K15.53 mi2.42 mi2575-702459-672459-673062(Top 11%)2907(Top 18%)2907(Top 52%)
30K18.64 mi3.11 mi3076-5012927-4682927-4685776(Top 20%)5148(Top 32%)5148(Top 91%)
20M20.00 mi1.36 mi3591-5153389-4623389-46211555(Top 41%)8304(Top 52%)8304(Top 147%)
21M21.00 mi1.00 mi3822-2313591-2023591-2028848(Top 31%)6726(Top 42%)6726(Top 119%)
35K21.75 mi0.75 mi3941-1193689-983689-987842(Top 28%)6196(Top 38%)6196(Top 110%)
23M23.00 mi1.25 mi4181-2403883-1943883-1947918(Top 28%)6112(Top 38%)6112(Top 108%)
24M24.00 mi1.00 mi4344-1634011-1284011-1287784(Top 27%)5978(Top 37%)5978(Top 106%)
40K24.85 mi0.85 mi4451-1074098-874098-876911(Top 24%)5366(Top 33%)5366(Top 95%)
25.2M25.20 mi0.35 mi4534-834162-644162-647900(Top 28%)5841(Top 36%)5841(Top 104%)
Finish26.22 mi1.02 mi4620-864236-744236-745829(Top 21%)4626(Top 29%)4626(Top 82%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2539

Males

2424

M18-39

2424

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2911

Males

2772

M18-39

2772

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2539

Males

2424

M18-39

2424

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2787

Males

2654

M18-39

2654

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2848

Males

2724

M18-39

2724

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3062

Males

2907

M18-39

2907

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5776

Males

5148

M18-39

5148

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

11555

Males

8304

M18-39

8304

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8848

Males

6726

M18-39

6726

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

7842

Males

6196

M18-39

6196

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7918

Males

6112

M18-39

6112

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7784

Males

5978

M18-39

5978

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6911

Males

5366

M18-39

5366

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7900

Males

5841

M18-39

5841

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

5829

Males

4626

M18-39

4626

Passing Analysis

Category:
Athletes Passed
335
Passed By
3039
Net Change
-2704
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1916
5K → 10K14464-450#1916#2366
10K → 15K70120-50#2366#2416
15K → 20K52126-74#2416#2490
20K → Half924-15#2490#2505
Half → 25K39109-70#2505#2575
25K → 30K20521-501#2575#3076
30K → 20M11526-515#3076#3591
20M → 21M11242-231#3591#3822
21M → 35K14133-119#3822#3941
35K → 23M23263-240#3941#4181
23M → 24M20183-163#4181#4344
24M → 40K24131-107#4344#4451
40K → 25.2M790-83#4451#4534
25.2M → Finish21107-86#4534#4620
TOTALS3353039-2704
📊

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