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BOSTON MARATHON 2025

Alejandro Cantu

Bib: 31692 M MX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:44/mi
27:08
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:55/mi
54:51
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
9:02/mi
1:22:54
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
17:59/mi
2:18:45
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
15:06/mi
2:29:03
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
15:44/mi
3:07:13
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
13:29/mi
3:49:07
↑ 181↓ 1480.2%
138 ft elev
20M
13:46/mi
4:07:49
↑ 64↓ 500.2%
148 ft elev
21M
14:05/mi
4:21:54
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
12:54/mi
4:31:33
↑ 17↓ 861.7%
156 ft elev
23M
13:46/mi
4:48:47
↑ 23↓ 630.6%
116 ft elev
24M
12:36/mi
5:01:23
↓ 821.3%
34 ft elev
40K· 24.85 mi
13:19/mi
5:12:46
↓ 200.3%
20 ft elev
25.2M
13:46/mi
5:17:31
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
12:14/mi
5:29:59
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:29:03
Pace11:22 /mi
2nd Half
Distance13.11 mi
Time3:00:56
Pace13:48 /mi
📊Positive Split: 21.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:1827:088:4427:08
8:44
-
10K
6.21 mi12:19:0154:518:5027:43
8:55
+0:11
15K
9.32 mi12:47:041:22:548:5428:03
9:02
+0:07
20K
12.43 mi13:42:552:18:4511:1055:51
17:59
+8:57
Half
13.11 mi13:53:132:29:0311:2210:18
15:06
-2:53
25K
15.53 mi14:31:233:07:1312:0338:10
15:44
+0:38
30K
18.64 mi15:13:173:49:0712:1741:54
13:29
-2:15
20M
20.00 mi15:31:594:07:4912:2318:42
13:46
+0:17
21M
21.00 mi15:46:044:21:5412:2814:05
14:05
+0:19
35K
21.75 mi15:55:434:31:3312:299:39
12:54
-1:11
23M
23.00 mi16:12:574:48:4712:3317:14
13:46
+0:52
24M
24.00 mi16:25:335:01:2312:3312:36
12:36
-1:10
40K
24.85 mi16:36:565:12:4612:3511:23
13:19
+0:43
25.2M
25.20 mi16:41:415:17:3112:364:45
13:46
+0:27
Finish
26.22 mi16:54:095:29:5912:3612:28
12:14
-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

8:44 /mi

Average Pace

12:36 /mi

Slowest Pace

17:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:22

29% of race

Time at Steady Pace

2:10:18

39% of race

Time at Slower Pace

1:44:19

32% of race

Average Pace: 12:35 /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 mi11:51:1827:088:4427:08
8:44
#21161
10K
6.21 mi12:19:0154:518:5027:43
8:55
#21588
15K
9.32 mi12:47:041:22:548:5428:03
9:02
#21788
20K
12.43 mi13:42:552:18:4511:1055:51
17:59
#27015
Half
13.11 mi13:53:132:29:0311:2210:18
15:06
#27225
25K
15.53 mi14:31:233:07:1312:0338:10
15:44
#27643
30K
18.64 mi15:13:173:49:0712:1741:54
13:29
#27566
20M
20.00 mi15:31:594:07:4912:2318:42
13:46
#27533
21M
21.00 mi15:46:044:21:5412:2814:05
14:05
#27490
35K
21.75 mi15:55:434:31:3312:299:39
12:54
#27479
23M
23.00 mi16:12:574:48:4712:3317:14
13:46
#27487
24M
24.00 mi16:25:335:01:2312:3312:36
12:36
#27454
40K
24.85 mi16:36:565:12:4612:3511:23
13:19
#27438
25.2M
25.20 mi16:41:415:17:3112:364:45
13:46
#27427
Finish
26.22 mi16:54:095:29:5912:3612:28
12:14
#27426
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi21161129361293622165(Top 78%)13463(Top 84%)13463(Top 674%)
10K6.21 mi3.10 mi21588-42713148-21213148-21222039(Top 78%)13366(Top 83%)13366(Top 670%)
15K9.32 mi3.11 mi21788-20013238-9013238-9022165(Top 78%)13463(Top 84%)13463(Top 674%)
20K12.43 mi3.11 mi27015-522715571-233315571-233328400(Top 100%)16103(Top 100%)16103(Top 807%)
Half13.11 mi0.68 mi27225-21015656-8515656-8528356(Top 100%)16078(Top 100%)16078(Top 806%)
25K15.53 mi2.42 mi27643-41815813-15715813-15728327(Top 100%)16063(Top 100%)16063(Top 805%)
30K18.64 mi3.11 mi27566+7715758+5515758+5527130(Top 96%)15489(Top 96%)15489(Top 776%)
20M20.00 mi1.36 mi27533+3315732+2615732+2627123(Top 95%)15430(Top 96%)15430(Top 773%)
21M21.00 mi1.00 mi27490+4315712+2015712+2026317(Top 93%)15033(Top 93%)15033(Top 753%)
35K21.75 mi0.75 mi27479+1115707+515707+526875(Top 95%)15281(Top 95%)15281(Top 766%)
23M23.00 mi1.25 mi27487-8157071570727127(Top 96%)15391(Top 96%)15391(Top 771%)
24M24.00 mi1.00 mi27454+3315685+2215685+2226436(Top 93%)15031(Top 93%)15031(Top 753%)
40K24.85 mi0.85 mi27438+1615679+615679+626603(Top 94%)15089(Top 94%)15089(Top 756%)
25.2M25.20 mi0.35 mi27427+1115672+715672+726038(Top 92%)14772(Top 92%)14772(Top 740%)
Finish26.22 mi1.02 mi27426+115667+515667+527054(Top 95%)15334(Top 95%)15334(Top 768%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

22165

Males

13463

M50-54

13463

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

22039

Males

13366

M50-54

13366

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

22165

Males

13463

M50-54

13463

15K→20K

9.3 - 12.4 mi

Top 100%
×5story building
+106ft-86ft

Overall

28400

Males

16103

M50-54

16103

20K→Half

12.4 - 13.1 mi

Top 100%
×2story building
+19ft-37ft

Overall

28356

Males

16078

M50-54

16078

Half→25K

13.1 - 15.5 mi

Top 100%
×4story building
+66ft-88ft

Overall

28327

Males

16063

M50-54

16063

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

27130

Males

15489

M50-54

15489

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

27123

Males

15430

M50-54

15430

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

26317

Males

15033

M50-54

15033

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

26875

Males

15281

M50-54

15281

35K→23M

21.8 - 23.0 mi

Top 96%
×5story building
+23ft-63ft

Overall

27127

Males

15391

M50-54

15391

23M→24M

23.0 - 24.0 mi

Top 93%
×6story building
+12ft-82ft

Overall

26436

Males

15031

M50-54

15031

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

26603

Males

15089

M50-54

15089

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

26038

Males

14772

M50-54

14772

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2story building
+22ft-21ft

Overall

27054

Males

15334

M50-54

15334

Passing Analysis

Category:
Athletes Passed
617
Passed By
6882
Net Change
-6265
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21161
5K → 10K135562-427#21161#21588
10K → 15K141341-200#21588#21788
15K → 20K15228-5227#21788#27015
20K → Half0210-210#27015#27225
Half → 25K7425-418#27225#27643
25K → 30K9922+77#27643#27566
30K → 20M4815+33#27566#27533
20M → 21M452+43#27533#27490
21M → 35K2110+11#27490#27479
35K → 23M1826-8#27479#27487
23M → 24M418+33#27487#27454
24M → 40K2913+16#27454#27438
40K → 25.2M143+11#27438#27427
25.2M → Finish1817+1#27427#27426
TOTALS6176882-6265
📊

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