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BOSTON MARATHON 2025

Tomas Corzo

Bib: 14097•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 47%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
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
7:27/mi
23:08
↑ 97↓ 3451.5%
10K· 6.21 mi
7:21/mi
45:59
↑ 79↓ 1380.4%
15K· 9.32 mi
7:13/mi
1:08:23
↑ 67↓ 78
20K· 12.43 mi
7:25/mi
1:31:26
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:36:27
↑ 19↓ 370.5%
25K· 15.53 mi
7:35/mi
1:54:51
↑ 66↓ 880.2%
30K· 18.64 mi
8:30/mi
2:21:17
↑ 181↓ 1480.2%
20M
9:10/mi
2:33:44
↑ 64↓ 500.2%
21M
10:50/mi
2:44:34
↑ 106↓ 241.6%
35K· 21.75 mi
7:38/mi
2:50:17
↑ 17↓ 861.7%
23M
8:16/mi
3:00:38
↑ 23↓ 630.6%
24M
8:16/mi
3:08:54
↓ 821.3%
40K· 24.85 mi
9:54/mi
3:17:22
↓ 200.3%
25.2M
11:04/mi
3:21:11
↑ 13↓ 160.2%
Finish· 26.22 mi
9:31/mi
3:30:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:27
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:54:26
Pace8:44 /mi
📊Positive Split: 18.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0423:087:2723:08
7:27
-
10K
6.21 mi11:15:5545:597:2422:51
7:21
-0:06
15K
9.32 mi11:38:191:08:237:2022:24
7:13
-0:08
20K
12.43 mi12:01:221:31:267:2123:03
7:25
+0:12
Half
13.11 mi12:06:231:36:277:215:01
7:21
-0:04
25K
15.53 mi12:24:471:54:517:2418:24
7:35
+0:14
30K
18.64 mi12:51:132:21:177:3526:26
8:30
+0:55
20M
20.00 mi13:03:402:33:447:4112:27
9:10
+0:40
21M
21.00 mi13:14:302:44:347:5010:50
10:50
+1:40
35K
21.75 mi13:20:132:50:177:505:43
7:38
-3:12
23M
23.00 mi13:30:343:00:387:5110:21
8:16
+0:38
24M
24.00 mi13:38:503:08:547:528:16
8:16
0:00
40K
24.85 mi13:47:183:17:227:568:28
9:54
+1:38
25.2M
25.20 mi13:51:073:21:117:593:49
11:04
+1:10
Finish
26.22 mi14:00:493:30:538:039:42
9:31
-1:33

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

7:13 /mi

Average Pace

8:03 /mi

Slowest Pace

11:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:34

57% of race

Time at Steady Pace

45:03

21% of race

Time at Slower Pace

45:16

21% of race

Average Pace: 8:03 /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 mi10:53:0423:087:2723:08
7:27
#11749
10K
6.21 mi11:15:5545:597:2422:51
7:21
#11237
15K
9.32 mi11:38:191:08:237:2022:24
7:13
#10543
20K
12.43 mi12:01:221:31:267:2123:03
7:25
#10370
Half
13.11 mi12:06:231:36:277:215:01
7:21
#10364
25K
15.53 mi12:24:471:54:517:2418:24
7:35
#10386
30K
18.64 mi12:51:132:21:177:3526:26
8:30
#11272
20M
20.00 mi13:03:402:33:447:4112:27
9:10
#11777
21M
21.00 mi13:14:302:44:347:5010:50
10:50
#12597
35K
21.75 mi13:20:132:50:177:505:43
7:38
#12453
23M
23.00 mi13:30:343:00:387:5110:21
8:16
#12378
24M
24.00 mi13:38:503:08:547:528:16
8:16
#12411
40K
24.85 mi13:47:183:17:227:568:28
9:54
#12826
25.2M
25.20 mi13:51:073:21:117:593:49
11:04
#13021
Finish
26.22 mi14:00:493:30:538:039:42
9:31
#13439
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi11749906890689216(Top 32%)7670(Top 48%)7670(Top 384%)
10K6.21 mi3.10 mi11237+5128792+2768792+27610787(Top 38%)8557(Top 53%)8557(Top 429%)
15K9.32 mi3.11 mi10543+6948422+3708422+3709216(Top 32%)7670(Top 48%)7670(Top 384%)
20K12.43 mi3.11 mi10370+1738302+1208302+12010058(Top 35%)8048(Top 50%)8048(Top 403%)
Half13.11 mi0.68 mi10364+68288+148288+1410482(Top 37%)8295(Top 52%)8295(Top 416%)
25K15.53 mi2.42 mi10386-228281+78281+710677(Top 38%)8239(Top 51%)8239(Top 413%)
30K18.64 mi3.11 mi11272-8868635-3548635-35414798(Top 52%)9961(Top 62%)9961(Top 499%)
20M20.00 mi1.36 mi11777-5058838-2038838-20317575(Top 62%)11062(Top 69%)11062(Top 554%)
21M21.00 mi1.00 mi12597-8209177-3399177-33920920(Top 74%)12451(Top 77%)12451(Top 624%)
35K21.75 mi0.75 mi12453+1449086+919086+919640(Top 34%)7194(Top 45%)7194(Top 360%)
23M23.00 mi1.25 mi12378+759012+749012+7411813(Top 42%)8150(Top 51%)8150(Top 408%)
24M24.00 mi1.00 mi12411-338998+148998+1413009(Top 46%)8656(Top 54%)8656(Top 434%)
40K24.85 mi0.85 mi12826-4159159-1619159-16120109(Top 71%)11836(Top 73%)11836(Top 593%)
25.2M25.20 mi0.35 mi13021-1959235-769235-7620790(Top 73%)12166(Top 76%)12166(Top 610%)
Finish26.22 mi1.02 mi13439-4189398-1639398-16321228(Top 75%)12396(Top 77%)12396(Top 621%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

9216

Males

7670

M50-54

7670

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10787

Males

8557

M50-54

8557

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

9216

Males

7670

M50-54

7670

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

10058

Males

8048

M50-54

8048

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

10482

Males

8295

M50-54

8295

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10677

Males

8239

M50-54

8239

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

14798

Males

9961

M50-54

9961

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

17575

Males

11062

M50-54

11062

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

20920

Males

12451

M50-54

12451

21M→35K

21.0 - 21.8 mi

Top 34%
×7story building
+17ft-86ft

Overall

9640

Males

7194

M50-54

7194

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11813

Males

8150

M50-54

8150

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

13009

Males

8656

M50-54

8656

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20109

Males

11836

M50-54

11836

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20790

Males

12166

M50-54

12166

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

21228

Males

12396

M50-54

12396

Passing Analysis

Category:
Athletes Passed
2235
Passed By
3924
Net Change
-1690
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11749
5K → 10K58977+512#11749#11237
10K → 15K70511+694#11237#10543
15K → 20K25582+173#10543#10370
20K → Half3731+6#10370#10364
Half → 25K151173-22#10364#10386
25K → 30K62947-886#10386#11272
30K → 20M34539-505#11272#11777
20M → 21M9829-820#11777#12597
21M → 35K1517+144#12597#12453
35K → 23M14469+75#12453#12378
23M → 24M6093-33#12378#12411
24M → 40K19434-415#12411#12826
40K → 25.2M7202-195#12826#13021
25.2M → Finish12430-418#13021#13439
TOTALS22353924-1690
📊

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