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BOSTON MARATHON 2025

Javier Cecilla

Bib: 31661•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
8:11/mi
25:25
↑ 97↓ 3451.5%
10K· 6.21 mi
8:09/mi
50:43
↑ 79↓ 1380.4%
15K· 9.32 mi
8:11/mi
1:16:07
↑ 67↓ 78
20K· 12.43 mi
8:26/mi
1:42:20
↑ 106↓ 860.1%
Half· 13.11 mi
8:17/mi
1:47:59
↑ 19↓ 370.5%
25K· 15.53 mi
9:11/mi
2:10:15
↑ 66↓ 880.2%
30K· 18.64 mi
10:28/mi
2:42:47
↑ 181↓ 1480.2%
20M
12:12/mi
2:59:22
↑ 64↓ 500.2%
21M
12:09/mi
3:11:31
↑ 106↓ 241.6%
35K· 21.75 mi
10:03/mi
3:19:02
↑ 17↓ 861.7%
23M
11:28/mi
3:33:24
↑ 23↓ 630.6%
24M
11:50/mi
3:45:14
↓ 821.3%
40K· 24.85 mi
12:30/mi
3:55:55
↓ 200.3%
25.2M
11:36/mi
3:59:55
↑ 13↓ 160.2%
Finish· 26.22 mi
9:38/mi
4:09:44
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:59
Pace8:14 /mi
2nd Half
Distance13.11 mi
Time2:21:45
Pace10:49 /mi
📊Positive Split: 31.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:3425:258:1125:25
8:11
-
10K
6.21 mi12:15:5250:438:1025:18
8:09
-0:02
15K
9.32 mi12:41:161:16:078:1025:24
8:11
+0:02
20K
12.43 mi13:07:291:42:208:1426:13
8:26
+0:15
Half
13.11 mi13:13:081:47:598:145:39
8:17
-0:09
25K
15.53 mi13:35:242:10:158:2322:16
9:11
+0:54
30K
18.64 mi14:07:562:42:478:4432:32
10:28
+1:17
20M
20.00 mi14:24:312:59:228:5816:35
12:12
+1:44
21M
21.00 mi14:36:403:11:319:0712:09
12:09
-0:03
35K
21.75 mi14:44:113:19:029:097:31
10:03
-2:06
23M
23.00 mi14:58:333:33:249:1714:22
11:28
+1:25
24M
24.00 mi15:10:233:45:149:2311:50
11:50
+0:22
40K
24.85 mi15:21:043:55:559:3010:41
12:30
+0:40
25.2M
25.20 mi15:25:043:59:559:314:00
11:36
-0:54
Finish
26.22 mi15:34:534:09:449:329:49
9:38
-1:58

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

8:09 /mi

Average Pace

9:32 /mi

Slowest Pace

12:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:15

52% of race

Time at Steady Pace

49:52

20% of race

Time at Slower Pace

1:09:37

28% of race

Average Pace: 9:31 /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 mi11:50:3425:258:1125:25
8:11
#17983
10K
6.21 mi12:15:5250:438:1025:18
8:09
#17702
15K
9.32 mi12:41:161:16:078:1025:24
8:11
#17538
20K
12.43 mi13:07:291:42:208:1426:13
8:26
#17580
Half
13.11 mi13:13:081:47:598:145:39
8:17
#17586
25K
15.53 mi13:35:242:10:158:2322:16
9:11
#18166
30K
18.64 mi14:07:562:42:478:4432:32
10:28
#19507
20M
20.00 mi14:24:312:59:228:5816:35
12:12
#20407
21M
21.00 mi14:36:403:11:319:0712:09
12:09
#20727
35K
21.75 mi14:44:113:19:029:097:31
10:03
#20813
23M
23.00 mi14:58:333:33:249:1714:22
11:28
#21135
24M
24.00 mi15:10:233:45:149:2311:50
11:50
#21450
40K
24.85 mi15:21:043:55:559:3010:41
12:30
#21719
25.2M
25.20 mi15:25:043:59:559:314:00
11:36
#21720
Finish
26.22 mi15:34:534:09:449:329:49
9:38
#21705
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi17983115971159717237(Top 61%)11323(Top 70%)11323(Top 201%)
10K6.21 mi3.10 mi17702+28111504+9311504+9317494(Top 62%)11453(Top 71%)11453(Top 203%)
15K9.32 mi3.11 mi17538+16411453+5111453+5117237(Top 61%)11323(Top 70%)11323(Top 201%)
20K12.43 mi3.11 mi17580-4211443+1011443+1017794(Top 63%)11526(Top 72%)11526(Top 204%)
Half13.11 mi0.68 mi17586-611452-911452-917820(Top 63%)11565(Top 72%)11565(Top 205%)
25K15.53 mi2.42 mi18166-58011662-21011662-21020698(Top 73%)12721(Top 79%)12721(Top 225%)
30K18.64 mi3.11 mi19507-134112211-54912211-54922878(Top 81%)13565(Top 84%)13565(Top 240%)
20M20.00 mi1.36 mi20407-90012569-35812569-35825538(Top 90%)14699(Top 91%)14699(Top 261%)
21M21.00 mi1.00 mi20727-32012699-13012699-13023839(Top 84%)13836(Top 86%)13836(Top 245%)
35K21.75 mi0.75 mi20813-8612719-2012719-2022017(Top 78%)12919(Top 80%)12919(Top 229%)
23M23.00 mi1.25 mi21135-32212845-12612845-12624202(Top 85%)13942(Top 87%)13942(Top 247%)
24M24.00 mi1.00 mi21450-31512972-12712972-12725454(Top 90%)14530(Top 90%)14530(Top 258%)
40K24.85 mi0.85 mi21719-26913053-8113053-8125653(Top 90%)14613(Top 91%)14613(Top 259%)
25.2M25.20 mi0.35 mi21720-113047+613047+622283(Top 78%)12933(Top 80%)12933(Top 229%)
Finish26.22 mi1.02 mi21705+1513031+1613031+1621660(Top 76%)12614(Top 78%)12614(Top 224%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

17237

Males

11323

M18-39

11323

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

17494

Males

11453

M18-39

11453

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

17237

Males

11323

M18-39

11323

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

17794

Males

11526

M18-39

11526

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

17820

Males

11565

M18-39

11565

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

20698

Males

12721

M18-39

12721

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

22878

Males

13565

M18-39

13565

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

25538

Males

14699

M18-39

14699

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

23839

Males

13836

M18-39

13836

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

22017

Males

12919

M18-39

12919

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

24202

Males

13942

M18-39

13942

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

25454

Males

14530

M18-39

14530

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

25653

Males

14613

M18-39

14613

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22283

Males

12933

M18-39

12933

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

21660

Males

12614

M18-39

12614

Passing Analysis

Category:
Athletes Passed
1216
Passed By
4938
Net Change
-3722
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17983
5K → 10K439158+281#17983#17702
10K → 15K278114+164#17702#17538
15K → 20K175217-42#17538#17580
20K → Half3844-6#17580#17586
Half → 25K54634-580#17586#18166
25K → 30K331374-1341#18166#19507
30K → 20M11911-900#19507#20407
20M → 21M28348-320#20407#20727
21M → 35K35121-86#20727#20813
35K → 23M33355-322#20813#21135
23M → 24M7322-315#21135#21450
24M → 40K10279-269#21450#21719
40K → 25.2M2122-1#21719#21720
25.2M → Finish5439+15#21720#21705
TOTALS12164938-3722
📊

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