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BOSTON MARATHON 2025

Javier Cantu

Bib: 31681•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
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
8:03/mi
25:00
↑ 97↓ 3451.5%
10K· 6.21 mi
8:00/mi
49:52
↑ 79↓ 1380.4%
15K· 9.32 mi
8:00/mi
1:14:43
↑ 67↓ 78
20K· 12.43 mi
8:12/mi
1:40:13
↑ 106↓ 860.1%
Half· 13.11 mi
8:21/mi
1:45:55
↑ 19↓ 370.5%
25K· 15.53 mi
8:19/mi
2:06:06
↑ 66↓ 880.2%
30K· 18.64 mi
8:45/mi
2:33:16
↑ 181↓ 1480.2%
20M
8:46/mi
2:45:11
↑ 64↓ 500.2%
21M
9:42/mi
2:54:53
↑ 106↓ 241.6%
35K· 21.75 mi
8:32/mi
3:01:16
↑ 17↓ 861.7%
23M
9:07/mi
3:12:41
↑ 23↓ 630.6%
24M
9:28/mi
3:22:09
↓ 821.3%
40K· 24.85 mi
9:56/mi
3:30:39
↓ 200.3%
25.2M
10:58/mi
3:34:26
↑ 13↓ 160.2%
Finish· 26.22 mi
9:26/mi
3:44:03
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:55
Pace8:05 /mi
2nd Half
Distance13.11 mi
Time1:58:08
Pace9:01 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:5025:008:0325:00
8:03
-
10K
6.21 mi12:12:4249:528:0224:52
8:00
-0:03
15K
9.32 mi12:37:331:14:438:0124:51
8:00
0:00
20K
12.43 mi13:03:031:40:138:0425:30
8:12
+0:12
Half
13.11 mi13:08:451:45:558:055:42
8:21
+0:09
25K
15.53 mi13:28:562:06:068:0720:11
8:19
-0:02
30K
18.64 mi13:56:062:33:168:1327:10
8:45
+0:26
20M
20.00 mi14:08:012:45:118:1611:55
8:46
+0:01
21M
21.00 mi14:17:432:54:538:209:42
9:42
+0:56
35K
21.75 mi14:24:063:01:168:206:23
8:32
-1:10
23M
23.00 mi14:35:313:12:418:2311:25
9:07
+0:35
24M
24.00 mi14:44:593:22:098:259:28
9:28
+0:21
40K
24.85 mi14:53:293:30:398:298:30
9:56
+0:28
25.2M
25.20 mi14:57:163:34:268:313:47
10:58
+1:02
Finish
26.22 mi15:06:533:44:038:339:37
9:26
-1:32

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

8:00 /mi

Average Pace

8:33 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:24

54% of race

Time at Steady Pace

1:02:35

28% of race

Time at Slower Pace

41:04

18% of race

Average Pace: 8:33 /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 mi11:47:5025:008:0325:00
8:03
#16950
10K
6.21 mi12:12:4249:528:0224:52
8:00
#16713
15K
9.32 mi12:37:331:14:438:0124:51
8:00
#16455
20K
12.43 mi13:03:031:40:138:0425:30
8:12
#16414
Half
13.11 mi13:08:451:45:558:055:42
8:21
#16527
25K
15.53 mi13:28:562:06:068:0720:11
8:19
#16431
30K
18.64 mi13:56:062:33:168:1327:10
8:45
#16357
20M
20.00 mi14:08:012:45:118:1611:55
8:46
#16253
21M
21.00 mi14:17:432:54:538:209:42
9:42
#16239
35K
21.75 mi14:24:063:01:168:206:23
8:32
#16204
23M
23.00 mi14:35:313:12:418:2311:25
9:07
#16188
24M
24.00 mi14:44:593:22:098:259:28
9:28
#16362
40K
24.85 mi14:53:293:30:398:298:30
9:56
#16576
25.2M
25.20 mi14:57:163:34:268:313:47
10:58
#16676
Finish
26.22 mi15:06:533:44:038:339:37
9:26
#16914
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16950111841118416041(Top 56%)10830(Top 67%)10830(Top 657%)
10K6.21 mi3.10 mi16713+23711102+8211102+8216508(Top 58%)11036(Top 69%)11036(Top 670%)
15K9.32 mi3.11 mi16455+25810997+10510997+10516041(Top 56%)10830(Top 67%)10830(Top 657%)
20K12.43 mi3.11 mi16414+4110982+1510982+1516344(Top 58%)10892(Top 68%)10892(Top 661%)
Half13.11 mi0.68 mi16527-11311025-4311025-4318231(Top 64%)11709(Top 73%)11709(Top 710%)
25K15.53 mi2.42 mi16431+9610959+6610959+6616066(Top 57%)10677(Top 66%)10677(Top 648%)
30K18.64 mi3.11 mi16357+7410864+9510864+9516253(Top 57%)10599(Top 66%)10599(Top 643%)
20M20.00 mi1.36 mi16253+10410799+6510799+6515477(Top 54%)10140(Top 63%)10140(Top 615%)
21M21.00 mi1.00 mi16239+1410764+3510764+3517012(Top 60%)10702(Top 66%)10702(Top 649%)
35K21.75 mi0.75 mi16204+3510725+3910725+3915653(Top 55%)10021(Top 62%)10021(Top 608%)
23M23.00 mi1.25 mi16188+1610687+3810687+3816900(Top 59%)10462(Top 65%)10462(Top 635%)
24M24.00 mi1.00 mi16362-17410736-4910736-4919484(Top 69%)11618(Top 72%)11618(Top 705%)
40K24.85 mi0.85 mi16576-21410800-6410800-6420242(Top 71%)11908(Top 74%)11908(Top 723%)
25.2M25.20 mi0.35 mi16676-10010823-2310823-2320491(Top 72%)12024(Top 75%)12024(Top 730%)
Finish26.22 mi1.02 mi16914-23810898-7510898-7520941(Top 74%)12254(Top 76%)12254(Top 744%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

16041

Males

10830

M55-59

10830

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

16508

Males

11036

M55-59

11036

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

16041

Males

10830

M55-59

10830

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

16344

Males

10892

M55-59

10892

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

18231

Males

11709

M55-59

11709

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

16066

Males

10677

M55-59

10677

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

16253

Males

10599

M55-59

10599

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

15477

Males

10140

M55-59

10140

20M→21M

20.0 - 21.0 mi

Top 60%
×8story building
+106ft-24ft

Overall

17012

Males

10702

M55-59

10702

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

15653

Males

10021

M55-59

10021

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

16900

Males

10462

M55-59

10462

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

19484

Males

11618

M55-59

11618

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20242

Males

11908

M55-59

11908

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20491

Males

12024

M55-59

12024

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

20941

Males

12254

M55-59

12254

Passing Analysis

Category:
Athletes Passed
2042
Passed By
2006
Net Change
+36
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16950
5K → 10K426189+237#16950#16713
10K → 15K34587+258#16713#16455
15K → 20K236195+41#16455#16414
20K → Half9122-113#16414#16527
Half → 25K196100+96#16527#16431
25K → 30K268194+74#16431#16357
30K → 20M15248+104#16357#16253
20M → 21M11298+14#16253#16239
21M → 35K8146+35#16239#16204
35K → 23M11599+16#16204#16188
23M → 24M36210-174#16188#16362
24M → 40K28242-214#16362#16576
40K → 25.2M10110-100#16576#16676
25.2M → Finish28266-238#16676#16914
TOTALS20422006+36
📊

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