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BOSTON MARATHON 2025

Sebastián Cordero

Bib: 1713•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 5%
Division (M18-39)
#0 / 5642
Top 13%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:15
Rank: #1829
Start → 5K
19:15 | 6:12/mi
10K· 6.21 mi
38:09
Rank: #1585 (+244)
5K → 10K
18:54 | 6:05/mi
15K· 9.32 mi
57:01
Rank: #1468 (+117)
10K → 15K
18:52 | 6:04/mi
20K· 12.43 mi
1:15:50
Rank: #1327 (+141)
15K → 20K
18:49 | 6:03/mi
Half· 13.11 mi
1:19:58
Rank: #1336 (-9)
20K → Half
4:08 | 6:03/mi
25K· 15.53 mi
1:34:47
Rank: #1279 (+57)
Half → 25K
14:49 | 6:07/mi
30K· 18.64 mi
1:54:18
Rank: #1236 (+43)
25K → 30K
19:31 | 6:17/mi
20M
2:02:48
Rank: #1187 (+49)
30K → 20M
8:30 | 6:15/mi
21M
2:09:14
Rank: #1110 (+77)
20M → 21M
6:26 | 6:26/mi
35K· 21.75 mi
2:13:44
Rank: #1085 (+25)
21M → 35K
4:30 | 6:01/mi
23M
2:21:31
Rank: #1021 (+64)
35K → 23M
7:47 | 6:13/mi
24M
2:27:34
Rank: #986 (+35)
23M → 24M
6:03 | 6:03/mi
40K· 24.85 mi
2:32:48
Rank: #960 (+26)
24M → 40K
5:14 | 6:07/mi
25.2M
2:35:05
Rank: #946 (+14)
40K → 25.2M
2:17 | 6:37/mi
Finish· 26.22 mi
2:40:55
Rank: #896 (+50)
25.2M → Finish
5:50 | 5:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:58
Pace6:06 /mi
2nd Half
Distance13.11 mi
Time1:20:57
Pace6:11 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:4419:156:1219:15
6:12
-
10K
6.21 mi10:38:3838:096:0818:54
6:05
-0:07
15K
9.32 mi10:57:3057:016:0718:52
6:04
-0:01
20K
12.43 mi11:16:191:15:506:0618:49
6:03
-0:01
Half
13.11 mi11:20:271:19:586:064:08
6:03
0:00
25K
15.53 mi11:35:161:34:476:0614:49
6:07
+0:04
30K
18.64 mi11:54:471:54:186:0819:31
6:17
+0:10
20M
20.00 mi12:03:172:02:486:088:30
6:15
-0:02
21M
21.00 mi12:09:432:09:146:096:26
6:26
+0:11
35K
21.75 mi12:14:132:13:446:094:30
6:01
-0:25
23M
23.00 mi12:22:002:21:316:097:47
6:13
+0:12
24M
24.00 mi12:28:032:27:346:096:03
6:03
-0:10
40K
24.85 mi12:33:172:32:486:095:14
6:07
+0:04
25.2M
25.20 mi12:35:342:35:056:092:17
6:37
+0:30
Finish
26.22 mi12:41:242:40:556:095:50
5:43
-0:54

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

5:43 /mi

Average Pace

6:09 /mi

Slowest Pace

6:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:12

95% of race

Time at Steady Pace

8:43

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:08 /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 mi10:19:4419:156:1219:15
6:12
#1829
10K
6.21 mi10:38:3838:096:0818:54
6:05
#1585
15K
9.32 mi10:57:3057:016:0718:52
6:04
#1468
20K
12.43 mi11:16:191:15:506:0618:49
6:03
#1327
Half
13.11 mi11:20:271:19:586:064:08
6:03
#1336
25K
15.53 mi11:35:161:34:476:0614:49
6:07
#1279
30K
18.64 mi11:54:471:54:186:0819:31
6:17
#1236
20M
20.00 mi12:03:172:02:486:088:30
6:15
#1187
21M
21.00 mi12:09:432:09:146:096:26
6:26
#1110
35K
21.75 mi12:14:132:13:446:094:30
6:01
#1085
23M
23.00 mi12:22:002:21:316:097:47
6:13
#1021
24M
24.00 mi12:28:032:27:346:096:03
6:03
#986
40K
24.85 mi12:33:172:32:486:095:14
6:07
#960
25.2M
25.20 mi12:35:342:35:056:092:17
6:37
#946
Finish
26.22 mi12:41:242:40:556:095:50
5:43
#896
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1829173717371263(Top 4%)1198(Top 7%)1198(Top 21%)
10K6.21 mi3.10 mi1585+2441507+2301507+2301406(Top 5%)1334(Top 8%)1334(Top 24%)
15K9.32 mi3.11 mi1468+1171393+1141393+1141263(Top 4%)1198(Top 7%)1198(Top 21%)
20K12.43 mi3.11 mi1327+1411258+1351258+1351018(Top 4%)959(Top 6%)959(Top 17%)
Half13.11 mi0.68 mi1336-91266-81266-81336(Top 5%)1268(Top 8%)1268(Top 22%)
25K15.53 mi2.42 mi1279+571209+571209+571119(Top 4%)1055(Top 7%)1055(Top 19%)
30K18.64 mi3.11 mi1236+431167+421167+421144(Top 4%)1078(Top 7%)1078(Top 19%)
20M20.00 mi1.36 mi1187+491120+471120+47853(Top 3%)805(Top 5%)805(Top 14%)
21M21.00 mi1.00 mi1110+771045+751045+75569(Top 2%)537(Top 3%)537(Top 10%)
35K21.75 mi0.75 mi1085+251022+231022+23758(Top 3%)709(Top 4%)709(Top 13%)
23M23.00 mi1.25 mi1021+64961+61961+61703(Top 2%)664(Top 4%)664(Top 12%)
24M24.00 mi1.00 mi986+35928+33928+33672(Top 2%)630(Top 4%)630(Top 11%)
40K24.85 mi0.85 mi960+26903+25903+25585(Top 2%)547(Top 3%)547(Top 10%)
25.2M25.20 mi0.35 mi946+14889+14889+14630(Top 2%)585(Top 4%)585(Top 10%)
Finish26.22 mi1.02 mi896+50839+50839+50394(Top 1%)370(Top 2%)370(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1263

Males

1198

M18-39

1198

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1406

Males

1334

M18-39

1334

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1263

Males

1198

M18-39

1198

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1018

Males

959

M18-39

959

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1336

Males

1268

M18-39

1268

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1119

Males

1055

M18-39

1055

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1144

Males

1078

M18-39

1078

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

853

Males

805

M18-39

805

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

569

Males

537

M18-39

537

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

758

Males

709

M18-39

709

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

703

Males

664

M18-39

664

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

672

Males

630

M18-39

630

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

585

Males

547

M18-39

547

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

630

Males

585

M18-39

585

25.2M→Finish

25.2 - 26.2 mi

Top 1%
×2stories
+22ft-21ft

Overall

394

Males

370

M18-39

370

Passing Analysis

Category:
Athletes Passed
1037
Passed By
104
Net Change
+933
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1829
5K → 10K26117+244#1829#1585
10K → 15K1236+117#1585#1468
15K → 20K1454+141#1468#1327
20K → Half514-9#1327#1336
Half → 25K7013+57#1336#1279
25K → 30K6825+43#1279#1236
30K → 20M5910+49#1236#1187
20M → 21M792+77#1187#1110
21M → 35K272+25#1110#1085
35K → 23M684+64#1085#1021
23M → 24M394+35#1021#986
24M → 40K282+26#986#960
40K → 25.2M151+14#960#946
25.2M → Finish500+50#946#896
TOTALS1037104+933
📊

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