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BOSTON MARATHON 2025

Cesar Sánchez Romero

Bib: 4108•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 23%
Division (M18-39)
#0 / 5642
Top 48%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:33
Rank: #7314
Start → 5K
21:33 | 6:56/mi
10K· 6.21 mi
43:02
Rank: #7333 (-19)
5K → 10K
21:29 | 6:55/mi
15K· 9.32 mi
1:04:01
Rank: #6811 (+522)
10K → 15K
20:59 | 6:45/mi
20K· 12.43 mi
1:24:51
Rank: #6191 (+620)
15K → 20K
20:50 | 6:42/mi
Half· 13.11 mi
1:29:23
Rank: #6102 (+89)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:45:41
Rank: #5738 (+364)
Half → 25K
16:18 | 6:43/mi
30K· 18.64 mi
2:06:43
Rank: #5126 (+612)
25K → 30K
21:02 | 6:46/mi
20M
2:16:01
Rank: #4923 (+203)
30K → 20M
9:18 | 6:51/mi
21M
2:23:24
Rank: #4842 (+81)
20M → 21M
7:23 | 7:23/mi
35K· 21.75 mi
2:28:12
Rank: #4665 (+177)
21M → 35K
4:48 | 6:25/mi
23M
2:36:31
Rank: #4415 (+250)
35K → 23M
8:19 | 6:39/mi
24M
2:43:02
Rank: #4247 (+168)
23M → 24M
6:31 | 6:31/mi
40K· 24.85 mi
2:48:41
Rank: #4115 (+132)
24M → 40K
5:39 | 6:36/mi
25.2M
2:51:15
Rank: #4094 (+21)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
2:57:50
Rank: #3989 (+105)
25.2M → Finish
6:35 | 6:28/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:29:23
Pace6:49 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:28:27
Pace6:45 /mi
📊Negative Split: 1.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:2221:336:5621:33
6:56
-
10K
6.21 mi10:45:5143:026:5621:29
6:55
-0:01
15K
9.32 mi11:06:501:04:016:5220:59
6:45
-0:10
20K
12.43 mi11:27:401:24:516:5020:50
6:42
-0:03
Half
13.11 mi11:32:121:29:236:494:32
6:39
-0:03
25K
15.53 mi11:48:301:45:416:4816:18
6:43
+0:04
30K
18.64 mi12:09:322:06:436:4821:02
6:46
+0:03
20M
20.00 mi12:18:502:16:016:489:18
6:51
+0:05
21M
21.00 mi12:26:132:23:246:507:23
7:23
+0:32
35K
21.75 mi12:31:012:28:126:494:48
6:25
-0:58
23M
23.00 mi12:39:202:36:316:488:19
6:39
+0:14
24M
24.00 mi12:45:512:43:026:486:31
6:31
-0:08
40K
24.85 mi12:51:302:48:416:475:39
6:36
+0:05
25.2M
25.20 mi12:54:042:51:156:482:34
7:27
+0:51
Finish
26.22 mi13:00:392:57:506:476:35
6:28
-0:59

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

6:25 /mi

Average Pace

6:47 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:53

94% of race

Time at Steady Pace

9:57

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:47 /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 mi10:24:2221:336:5621:33
6:56
#7314
10K
6.21 mi10:45:5143:026:5621:29
6:55
#7333
15K
9.32 mi11:06:501:04:016:5220:59
6:45
#6811
20K
12.43 mi11:27:401:24:516:5020:50
6:42
#6191
Half
13.11 mi11:32:121:29:236:494:32
6:39
#6102
25K
15.53 mi11:48:301:45:416:4816:18
6:43
#5738
30K
18.64 mi12:09:322:06:436:4821:02
6:46
#5126
20M
20.00 mi12:18:502:16:016:489:18
6:51
#4923
21M
21.00 mi12:26:132:23:246:507:23
7:23
#4842
35K
21.75 mi12:31:012:28:126:494:48
6:25
#4665
23M
23.00 mi12:39:202:36:316:488:19
6:39
#4415
24M
24.00 mi12:45:512:43:026:486:31
6:31
#4247
40K
24.85 mi12:51:302:48:416:475:39
6:36
#4115
25.2M
25.20 mi12:54:042:51:156:482:34
7:27
#4094
Finish
26.22 mi13:00:392:57:506:476:35
6:28
#3989
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi7314652465245611(Top 20%)5128(Top 32%)5128(Top 91%)
10K6.21 mi3.10 mi7333-196537-136537-137322(Top 26%)6518(Top 40%)6518(Top 116%)
15K9.32 mi3.11 mi6811+5226130+4076130+4075611(Top 20%)5128(Top 32%)5128(Top 91%)
20K12.43 mi3.11 mi6191+6205636+4945636+4944468(Top 16%)4163(Top 26%)4163(Top 74%)
Half13.11 mi0.68 mi6102+895561+755561+754730(Top 17%)4390(Top 27%)4390(Top 78%)
25K15.53 mi2.42 mi5738+3645256+3055256+3054287(Top 15%)3975(Top 25%)3975(Top 70%)
30K18.64 mi3.11 mi5126+6124718+5384718+5383256(Top 11%)3049(Top 19%)3049(Top 54%)
20M20.00 mi1.36 mi4923+2034546+1724546+1723175(Top 11%)2940(Top 18%)2940(Top 52%)
21M21.00 mi1.00 mi4842+814468+784468+784004(Top 14%)3627(Top 23%)3627(Top 64%)
35K21.75 mi0.75 mi4665+1774311+1574311+1572094(Top 7%)1961(Top 12%)1961(Top 35%)
23M23.00 mi1.25 mi4415+2504087+2244087+2242010(Top 7%)1880(Top 12%)1880(Top 33%)
24M24.00 mi1.00 mi4247+1683928+1593928+1592121(Top 7%)1968(Top 12%)1968(Top 35%)
40K24.85 mi0.85 mi4115+1323805+1233805+1232002(Top 7%)1845(Top 11%)1845(Top 33%)
25.2M25.20 mi0.35 mi4094+213783+223783+223123(Top 11%)2764(Top 17%)2764(Top 49%)
Finish26.22 mi1.02 mi3989+1053686+973686+972611(Top 9%)2361(Top 15%)2361(Top 42%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5611

Males

5128

M18-39

5128

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7322

Males

6518

M18-39

6518

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5611

Males

5128

M18-39

5128

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4468

Males

4163

M18-39

4163

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4730

Males

4390

M18-39

4390

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4287

Males

3975

M18-39

3975

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3256

Males

3049

M18-39

3049

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3175

Males

2940

M18-39

2940

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

4004

Males

3627

M18-39

3627

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

2094

Males

1961

M18-39

1961

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

2010

Males

1880

M18-39

1880

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

2121

Males

1968

M18-39

1968

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

2002

Males

1845

M18-39

1845

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

3123

Males

2764

M18-39

2764

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2611

Males

2361

M18-39

2361

Passing Analysis

Category:
Athletes Passed
3602
Passed By
277
Net Change
+3325
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7314
5K → 10K186205-19#7314#7333
10K → 15K5264+522#7333#6811
15K → 20K6211+620#6811#6191
20K → Half912+89#6191#6102
Half → 25K3706+364#6102#5738
25K → 30K6131+612#5738#5126
30K → 20M2063+203#5126#4923
20M → 21M11130+81#4923#4842
21M → 35K1770+177#4842#4665
35K → 23M2500+250#4665#4415
23M → 24M1713+168#4415#4247
24M → 40K1342+132#4247#4115
40K → 25.2M3110+21#4115#4094
25.2M → Finish11510+105#4094#3989
TOTALS3602277+3325
📊

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