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BOSTON MARATHON 2025

Javier Salas

Bib: 29438•M

MA

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

Start
0:00:00
Race begins
5K· 3.11 mi
29:51
Rank: #24573
Start → 5K
29:51 | 9:36/mi
10K· 6.21 mi
56:32
Rank: #22801 (+1772)
5K → 10K
26:41 | 8:35/mi
15K· 9.32 mi
1:22:52
Rank: #21768 (+1033)
10K → 15K
26:20 | 8:29/mi
20K· 12.43 mi
1:49:34
Rank: #21012 (+756)
15K → 20K
26:42 | 8:36/mi
Half· 13.11 mi
1:55:17
Rank: #20892 (+120)
20K → Half
5:43 | 8:23/mi
25K· 15.53 mi
2:17:30
Rank: #20874 (+18)
Half → 25K
22:13 | 9:10/mi
30K· 18.64 mi
2:50:59
Rank: #21634 (-760)
25K → 30K
33:29 | 10:47/mi
20M
3:05:14
Rank: #21726 (-92)
30K → 20M
14:15 | 10:29/mi
21M
3:16:25
Rank: #21732 (-6)
20M → 21M
11:11 | 11:11/mi
35K· 21.75 mi
3:23:34
Rank: #21679 (+53)
21M → 35K
7:09 | 9:33/mi
23M
3:39:01
Rank: #22034 (-355)
35K → 23M
15:27 | 12:20/mi
24M
3:51:55
Rank: #22383 (-349)
23M → 24M
12:54 | 12:54/mi
40K· 24.85 mi
4:01:02
Rank: #22366 (+17)
24M → 40K
9:07 | 10:40/mi
25.2M
4:05:16
Rank: #22383 (-17)
40K → 25.2M
4:14 | 12:17/mi
Finish· 26.22 mi
4:14:48
Rank: #22330 (+53)
25.2M → Finish
9:32 | 9:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:17
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:19:31
Pace10:39 /mi
📊Positive Split: 21.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:5229:519:3629:51
9:36
-
10K
6.21 mi12:14:3356:329:0626:41
8:35
-1:01
15K
9.32 mi12:40:531:22:528:5326:20
8:29
-0:06
20K
12.43 mi13:07:351:49:348:4926:42
8:36
+0:07
Half
13.11 mi13:13:181:55:178:485:43
8:23
-0:13
25K
15.53 mi13:35:312:17:308:5122:13
9:10
+0:47
30K
18.64 mi14:09:002:50:599:1033:29
10:47
+1:37
20M
20.00 mi14:23:153:05:149:1614:15
10:29
-0:18
21M
21.00 mi14:34:263:16:259:2111:11
11:11
+0:42
35K
21.75 mi14:41:353:23:349:227:09
9:33
-1:38
23M
23.00 mi14:57:023:39:019:3115:27
12:20
+2:47
24M
24.00 mi15:09:563:51:559:4012:54
12:54
+0:34
40K
24.85 mi15:19:034:01:029:429:07
10:40
-2:14
25.2M
25.20 mi15:23:174:05:169:444:14
12:17
+1:37
Finish
26.22 mi15:32:494:14:489:449:32
9:21
-2:56

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

8:23 /mi

Average Pace

9:44 /mi

Slowest Pace

12:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:25:26

34% of race

Time at Steady Pace

1:08:45

27% of race

Time at Slower Pace

1:40:37

39% of race

Average Pace: 9:43 /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 mi11:47:5229:519:3629:51
9:36
#24573
10K
6.21 mi12:14:3356:329:0626:41
8:35
#22801
15K
9.32 mi12:40:531:22:528:5326:20
8:29
#21768
20K
12.43 mi13:07:351:49:348:4926:42
8:36
#21012
Half
13.11 mi13:13:181:55:178:485:43
8:23
#20892
25K
15.53 mi13:35:312:17:308:5122:13
9:10
#20874
30K
18.64 mi14:09:002:50:599:1033:29
10:47
#21634
20M
20.00 mi14:23:153:05:149:1614:15
10:29
#21726
21M
21.00 mi14:34:263:16:259:2111:11
11:11
#21732
35K
21.75 mi14:41:353:23:349:227:09
9:33
#21679
23M
23.00 mi14:57:023:39:019:3115:27
12:20
#22034
24M
24.00 mi15:09:563:51:559:4012:54
12:54
#22383
40K
24.85 mi15:19:034:01:029:429:07
10:40
#22366
25.2M
25.20 mi15:23:174:05:169:444:14
12:17
#22383
Finish
26.22 mi15:32:494:14:489:449:32
9:21
#22330
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24573145161451619185(Top 68%)12138(Top 75%)12138(Top 215%)
10K6.21 mi3.10 mi22801+177213694+82213694+82220291(Top 71%)12606(Top 78%)12606(Top 223%)
15K9.32 mi3.11 mi21768+103313230+46413230+46419185(Top 68%)12138(Top 75%)12138(Top 215%)
20K12.43 mi3.11 mi21012+75612917+31312917+31318809(Top 66%)11957(Top 74%)11957(Top 212%)
Half13.11 mi0.68 mi20892+12012861+5612861+5618467(Top 65%)11829(Top 73%)11829(Top 210%)
25K15.53 mi2.42 mi20874+1812849+1212849+1220618(Top 73%)12683(Top 79%)12683(Top 225%)
30K18.64 mi3.11 mi21634-76013152-30313152-30323555(Top 83%)13861(Top 86%)13861(Top 246%)
20M20.00 mi1.36 mi21726-9213184-3213184-3222366(Top 79%)13220(Top 82%)13220(Top 234%)
21M21.00 mi1.00 mi21732-613159+2513159+2521853(Top 77%)12906(Top 80%)12906(Top 229%)
35K21.75 mi0.75 mi21679+5313125+3413125+3420517(Top 72%)12221(Top 76%)12221(Top 217%)
23M23.00 mi1.25 mi22034-35513239-11413239-11425576(Top 90%)14613(Top 91%)14613(Top 259%)
24M24.00 mi1.00 mi22383-34913372-13313372-13326743(Top 94%)15167(Top 94%)15167(Top 269%)
40K24.85 mi0.85 mi22366+1713342+3013342+3022342(Top 79%)12904(Top 80%)12904(Top 229%)
25.2M25.20 mi0.35 mi22383-17133421334223738(Top 84%)13631(Top 85%)13631(Top 242%)
Finish26.22 mi1.02 mi22330+5313307+3513307+3520609(Top 73%)12110(Top 75%)12110(Top 215%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21stories
+97ft-345ft

Overall

19185

Males

12138

M18-39

12138

5K→10K

3.1 - 6.2 mi

Top 71%
×5stories
+79ft-138ft

Overall

20291

Males

12606

M18-39

12606

10K→15K

6.2 - 9.3 mi

Top 68%
×3stories
+67ft-78ft

Overall

19185

Males

12138

M18-39

12138

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

18809

Males

11957

M18-39

11957

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

18467

Males

11829

M18-39

11829

Half→25K

13.1 - 15.5 mi

Top 73%
×4stories
+66ft-88ft

Overall

20618

Males

12683

M18-39

12683

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

23555

Males

13861

M18-39

13861

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

22366

Males

13220

M18-39

13220

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

21853

Males

12906

M18-39

12906

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

20517

Males

12221

M18-39

12221

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

25576

Males

14613

M18-39

14613

23M→24M

23.0 - 24.0 mi

Top 94%
×6stories
+12ft-82ft

Overall

26743

Males

15167

M18-39

15167

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

22342

Males

12904

M18-39

12904

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23738

Males

13631

M18-39

13631

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2stories
+22ft-21ft

Overall

20609

Males

12110

M18-39

12110

Passing Analysis

Category:
Athletes Passed
4284
Passed By
2041
Net Change
+2243
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24573
5K → 10K17720+1772#24573#22801
10K → 15K10396+1033#22801#21768
15K → 20K7604+756#21768#21012
20K → Half1233+120#21012#20892
Half → 25K155137+18#20892#20874
25K → 30K58818-760#20874#21634
30K → 20M62154-92#21634#21726
20M → 21M7985-6#21726#21732
21M → 35K6916+53#21732#21679
35K → 23M27382-355#21679#22034
23M → 24M8357-349#22034#22383
24M → 40K4427+17#22383#22366
40K → 25.2M1835-17#22366#22383
25.2M → Finish7017+53#22383#22330
TOTALS42842041+2243
📊

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