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BOSTON MARATHON 2026

Julio Alonso Contreras

Bib: 15562β€’M

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M55-59)
#0 / 1491
Top 49%
Race Day Weather
51Β°/41Β°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
22:39
3.11 mi
Rank: #10954
Start β†’ 5K
22:39 | 7:18/mi
10K
46:12
6.21 mi
Rank: #12266 (-1312)
5K β†’ 10K
23:33 | 7:35/mi
15K
1:09:54
9.32 mi
Rank: #12802 (-536)
10K β†’ 15K
23:42 | 7:38/mi
20K
1:33:59
12.43 mi
Rank: #13124 (-322)
15K β†’ 20K
24:05 | 7:46/mi
HALF
1:39:14
13.11 mi
Rank: #13202 (-78)
20K β†’ HALF
5:15 | 7:43/mi
25K
1:58:27
15.53 mi
Rank: #13449 (-247)
HALF β†’ 25K
19:13 | 7:56/mi
30K
2:23:59
18.64 mi
Rank: #13708 (-259)
25K β†’ 30K
25:32 | 8:14/mi
20M
2:35:23
20.00 mi
Rank: #13824 (-116)
30K β†’ 20M
11:24 | 8:24/mi
21M
2:44:19
21.00 mi
Rank: #13936 (-112)
20M β†’ 21M
8:56 | 8:56/mi
35K
2:50:29
21.75 mi
Rank: #14011 (-75)
21M β†’ 35K
6:10 | 8:15/mi
23M
3:01:20
23.00 mi
Rank: #14183 (-172)
35K β†’ 23M
10:51 | 8:41/mi
24M
3:10:04
24.00 mi
Rank: #14402 (-219)
23M β†’ 24M
8:44 | 8:44/mi
40K
3:17:37
24.85 mi
Rank: #14564 (-162)
24M β†’ 40K
7:33 | 8:50/mi
25.2M
3:20:56
25.20 mi
Rank: #14626 (-62)
40K β†’ 25.2M
3:19 | 9:38/mi
FINISH
3:29:29
26.22 mi
Rank: #14776 (-150)
25.2M β†’ FINISH
8:33 | 8:24/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:39:14
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:50:15
Pace8:25 /mi
πŸ“ŠPositive Split: 11.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:0422:397:1822:39
7:18
-
10K
6.21 mi11:18:3746:127:2723:33
7:35
+0:17
15K
9.32 mi11:42:191:09:547:3023:42
7:38
+0:03
20K
12.43 mi12:06:241:33:597:3424:05
7:46
+0:08
HALF
13.11 mi12:11:391:39:147:355:15
7:43
-0:03
25K
15.53 mi12:30:521:58:277:3819:13
7:56
+0:13
30K
18.64 mi12:56:242:23:597:4425:32
8:14
+0:18
20M
20.00 mi13:07:482:35:237:4711:24
8:24
+0:10
21M
21.00 mi13:16:442:44:197:508:56
8:56
+0:32
35K
21.75 mi13:22:542:50:297:516:10
8:15
-0:41
23M
23.00 mi13:33:453:01:207:5410:51
8:41
+0:26
24M
24.00 mi13:42:293:10:047:568:44
8:44
+0:03
40K
24.85 mi13:50:023:17:377:587:33
8:50
+0:06
25.2M
25.20 mi13:53:213:20:567:593:19
9:38
+0:48
FINISH
26.22 mi14:01:543:29:298:008:33
8:24
-1:14

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace 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

7:18 /mi

Average Pace

8:00 /mi

Slowest Pace

9:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:58:27

57% of race

Time at Steady Pace

51:39

25% of race

Time at Slower Pace

39:23

19% of race

Average Pace: 7:59 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:55:0422:397:1822:39
7:18
#10954
10K
6.21 mi11:18:3746:127:2723:33
7:35
#12266
15K
9.32 mi11:42:191:09:547:3023:42
7:38
#12802
20K
12.43 mi12:06:241:33:597:3424:05
7:46
#13124
HALF
13.11 mi12:11:391:39:147:355:15
7:43
#13202
25K
15.53 mi12:30:521:58:277:3819:13
7:56
#13449
30K
18.64 mi12:56:242:23:597:4425:32
8:14
#13708
20M
20.00 mi13:07:482:35:237:4711:24
8:24
#13824
21M
21.00 mi13:16:442:44:197:508:56
8:56
#13936
35K
21.75 mi13:22:542:50:297:516:10
8:15
#14011
23M
23.00 mi13:33:453:01:207:5410:51
8:41
#14183
24M
24.00 mi13:42:293:10:047:568:44
8:44
#14402
40K
24.85 mi13:50:023:17:377:587:33
8:50
#14564
25.2M
25.20 mi13:53:213:20:567:593:19
9:38
#14626
FINISH
26.22 mi14:01:543:29:298:008:33
8:24
#14776
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi109548576857613920(Top 48%)9767(Top 60%)9767(Top 655%)
10K6.21 mi3.10 mi12266-13129127-5519127-55113669(Top 47%)9693(Top 59%)9693(Top 650%)
15K9.32 mi3.11 mi12802-5369336-2099336-20913920(Top 48%)9767(Top 60%)9767(Top 655%)
20K12.43 mi3.11 mi13124-3229421-859421-8514136(Top 49%)9798(Top 60%)9798(Top 657%)
HALF13.11 mi0.68 mi13202-789458-379458-3714709(Top 51%)10098(Top 62%)10098(Top 677%)
25K15.53 mi2.42 mi13449-2479545-879545-8714774(Top 51%)9973(Top 61%)9973(Top 669%)
30K18.64 mi3.11 mi13708-2599621-769621-7615037(Top 52%)9985(Top 61%)9985(Top 670%)
20M20.00 mi1.36 mi13824-1169645-249645-2415497(Top 53%)10082(Top 62%)10082(Top 676%)
21M21.00 mi1.00 mi13936-1129664-199664-1915734(Top 54%)10130(Top 62%)10130(Top 679%)
35K21.75 mi0.75 mi14011-759681-179681-1716053(Top 55%)10208(Top 62%)10208(Top 685%)
23M23.00 mi1.25 mi14183-1729727-469727-4616705(Top 58%)10382(Top 64%)10382(Top 696%)
24M24.00 mi1.00 mi14402-2199784-579784-5718166(Top 63%)11025(Top 67%)11025(Top 739%)
40K24.85 mi0.85 mi14564-1629833-499833-4917515(Top 60%)10657(Top 65%)10657(Top 715%)
25.2M25.20 mi0.35 mi14626-629851-189851-1817791(Top 61%)10795(Top 66%)10795(Top 724%)
FINISH26.22 mi1.02 mi14776-1509888-379888-3717536(Top 60%)10666(Top 65%)10666(Top 715%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
Γ—21
+97ft-345ft

Overall

13920

Males

9767

M55-59

9767

5K→10K

3.1 - 6.2 mi

Top 47%
Γ—5
+79ft-138ft

Overall

13669

Males

9693

M55-59

9693

10K→15K

6.2 - 9.3 mi

Top 48%
Γ—3
+67ft-78ft

Overall

13920

Males

9767

M55-59

9767

15K→20K

9.3 - 12.4 mi

Top 49%
Γ—5
+106ft-86ft

Overall

14136

Males

9798

M55-59

9798

20K→HALF

12.4 - 13.1 mi

Top 51%
Γ—2
+19ft-37ft

Overall

14709

Males

10098

M55-59

10098

HALF→25K

13.1 - 15.5 mi

Top 51%
Γ—4
+66ft-88ft

Overall

14774

Males

9973

M55-59

9973

25K→30K

15.5 - 18.6 mi

Top 52%
Γ—9
+181ft-148ft

Overall

15037

Males

9985

M55-59

9985

30K→20M

18.6 - 20.0 mi

Top 53%
Γ—5
+64ft-50ft

Overall

15497

Males

10082

M55-59

10082

20M→21M

20.0 - 21.0 mi

Top 54%
Γ—8
+106ft-24ft

Overall

15734

Males

10130

M55-59

10130

21M→35K

21.0 - 21.8 mi

Top 55%
Γ—7
+17ft-86ft

Overall

16053

Males

10208

M55-59

10208

35K→23M

21.8 - 23.0 mi

Top 58%
Γ—5
+23ft-63ft

Overall

16705

Males

10382

M55-59

10382

23M→24M

23.0 - 24.0 mi

Top 63%
Γ—6
+12ft-82ft

Overall

18166

Males

11025

M55-59

11025

24M→40K

24.0 - 24.9 mi

Top 60%
Γ—1
+6ft-20ft

Overall

17515

Males

10657

M55-59

10657

40K→25.2M

24.9 - 25.2 mi

Top 61%
Γ—1
+13ft-16ft

Overall

17791

Males

10795

M55-59

10795

25.2M→FINISH

25.2 - 26.2 mi

Top 60%
Γ—2
+22ft-21ft

Overall

17536

Males

10666

M55-59

10666

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
673
Passed By
4494
Net Change
-3822
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#10954
5K β†’ 10K231334-1312#10954#12266
10K β†’ 15K63599-536#12266#12802
15K β†’ 20K67389-322#12802#13124
20K β†’ HALF1694-78#13124#13202
HALF β†’ 25K70317-247#13202#13449
25K β†’ 30K106365-259#13449#13708
30K β†’ 20M73189-116#13708#13824
20M β†’ 21M62174-112#13824#13936
21M β†’ 35K36111-75#13936#14011
35K β†’ 23M54226-172#14011#14183
23M β†’ 24M29248-219#14183#14402
24M β†’ 40K35197-162#14402#14564
40K β†’ 25.2M1476-62#14564#14626
25.2M β†’ FINISH25175-150#14626#14776
TOTALS6734494-3822
πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing