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BOSTON MARATHON 2026

Alex Fernández-Díaz

Bib: 31791•M

MA

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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Age Group (M18-39)
#0 / 5723
Race Day Weather
51°/41°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
31:30
3.11 mi
Rank: #26329
Start → 5K
31:30 | 10:09/mi
10K
1:02:43
6.21 mi
Rank: #26144 (+185)
5K → 10K
31:13 | 10:03/mi
15K
1:34:25
9.32 mi
Rank: #26139 (+5)
10K → 15K
31:42 | 10:13/mi
20K
2:08:33
12.43 mi
Rank: #26402 (-263)
15K → 20K
34:08 | 11:00/mi
HALF
2:15:40
13.11 mi
Rank: #26409 (-7)
20K → HALF
7:07 | 10:27/mi
25K
2:42:06
15.53 mi
Rank: #26361 (+48)
HALF → 25K
26:26 | 10:54/mi
30K
3:18:42
18.64 mi
Rank: #26420 (-59)
25K → 30K
36:36 | 11:47/mi
20M
3:35:29
20.00 mi
Rank: #26468 (-48)
30K → 20M
16:47 | 12:22/mi
21M
3:50:29
21.00 mi
Rank: #26653 (-185)
20M → 21M
15:00 | 15:00/mi
35K
4:00:37
21.75 mi
Rank: #26758 (-105)
21M → 35K
10:08 | 13:33/mi
23M
4:18:19
23.00 mi
Rank: #26913 (-155)
35K → 23M
17:42 | 14:09/mi
24M
4:32:09
24.00 mi
Rank: #27033 (-120)
23M → 24M
13:50 | 13:50/mi
40K
4:44:18
24.85 mi
Rank: #27096 (-63)
24M → 40K
12:09 | 14:13/mi
25.2M
4:48:38
25.20 mi
Rank: #27083 (+13)
40K → 25.2M
4:20 | 12:34/mi
FINISH
5:00:46
26.22 mi
Rank: #27110 (-27)
25.2M → FINISH
12:08 | 11:55/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:15:40
Pace10:21 /mi
2nd Half
Distance13.11 mi
Time2:45:06
Pace12:36 /mi
📊Positive Split: 21.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:0831:3010:0931:30
10:09
-
10K
6.21 mi12:29:211:02:4310:0631:13
10:03
-0:06
15K
9.32 mi13:01:031:34:2510:0831:42
10:13
+0:10
20K
12.43 mi13:35:112:08:3310:2134:08
11:00
+0:47
HALF
13.11 mi13:42:182:15:4010:217:07
10:27
-0:33
25K
15.53 mi14:08:442:42:0610:2726:26
10:54
+0:27
30K
18.64 mi14:45:203:18:4210:4036:36
11:47
+0:53
20M
20.00 mi15:02:073:35:2910:4716:47
12:22
+0:35
21M
21.00 mi15:17:073:50:2910:5915:00
15:00
+2:38
35K
21.75 mi15:27:154:00:3711:0410:08
13:33
-1:27
23M
23.00 mi15:44:574:18:1911:1417:42
14:09
+0:36
24M
24.00 mi15:58:474:32:0911:2113:50
13:50
-0:19
40K
24.85 mi16:10:564:44:1811:2712:09
14:13
+0:23
25.2M
25.20 mi16:15:164:48:3811:284:20
12:34
-1:39
FINISH
26.22 mi16:27:245:00:4611:2912:08
11:55
-0:39

Checkpoint Splits Visualizations

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

📈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

10:03 /mi

Average Pace

11:29 /mi

Slowest Pace

15:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

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

2:42:06

54% of race

Time at Steady Pace

1:09:51

23% of race

Time at Slower Pace

1:08:49

23% of race

Average Pace: 11:28 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:58:0831:3010:0931:30
10:09
#26329
10K
6.21 mi12:29:211:02:4310:0631:13
10:03
#26144
15K
9.32 mi13:01:031:34:2510:0831:42
10:13
#26139
20K
12.43 mi13:35:112:08:3310:2134:08
11:00
#26402
HALF
13.11 mi13:42:182:15:4010:217:07
10:27
#26409
25K
15.53 mi14:08:442:42:0610:2726:26
10:54
#26361
30K
18.64 mi14:45:203:18:4210:4036:36
11:47
#26420
20M
20.00 mi15:02:073:35:2910:4716:47
12:22
#26468
21M
21.00 mi15:17:073:50:2910:5915:00
15:00
#26653
35K
21.75 mi15:27:154:00:3711:0410:08
13:33
#26758
23M
23.00 mi15:44:574:18:1911:1417:42
14:09
#26913
24M
24.00 mi15:58:474:32:0911:2113:50
13:50
#27033
40K
24.85 mi16:10:564:44:1811:2712:09
14:13
#27096
25.2M
25.20 mi16:15:164:48:3811:284:20
12:34
#27083
FINISH
26.22 mi16:27:245:00:4611:2912:08
11:55
#27110
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi26329153491534926147(Top 90%)15237(Top 93%)15237(Top 266%)
10K6.21 mi3.10 mi26144+18515250+9915250+9925974(Top 90%)15168(Top 93%)15168(Top 265%)
15K9.32 mi3.11 mi26139+515246+415246+426147(Top 90%)15237(Top 93%)15237(Top 266%)
20K12.43 mi3.11 mi26402-26315345-9915345-9926947(Top 93%)15561(Top 95%)15561(Top 272%)
HALF13.11 mi0.68 mi26409-715348-315348-326551(Top 91%)15363(Top 94%)15363(Top 268%)
25K15.53 mi2.42 mi26361+4815321+2715321+2726183(Top 90%)15182(Top 93%)15182(Top 265%)
30K18.64 mi3.11 mi26420-5915311+1015311+1026495(Top 91%)15227(Top 93%)15227(Top 266%)
20M20.00 mi1.36 mi26468-4815321-1015321-1026802(Top 92%)15294(Top 94%)15294(Top 267%)
21M21.00 mi1.00 mi26653-18515398-7715398-7728060(Top 97%)15868(Top 97%)15868(Top 277%)
35K21.75 mi0.75 mi26758-10515444-4615444-4628065(Top 97%)15829(Top 97%)15829(Top 277%)
23M23.00 mi1.25 mi26913-15515494-5015494-5028243(Top 97%)15926(Top 97%)15926(Top 278%)
24M24.00 mi1.00 mi27033-12015536-4215536-4228238(Top 97%)15903(Top 97%)15903(Top 278%)
40K24.85 mi0.85 mi27096-6315554-1815554-1828038(Top 97%)15811(Top 97%)15811(Top 276%)
25.2M25.20 mi0.35 mi27083+1315548+615548+625450(Top 88%)14518(Top 89%)14518(Top 254%)
FINISH26.22 mi1.02 mi27110-2715547+115547+127356(Top 94%)15458(Top 95%)15458(Top 270%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21
+97ft-345ft

Overall

26147

Males

15237

M18-39

15237

5K→10K

3.1 - 6.2 mi

Top 90%
×5
+79ft-138ft

Overall

25974

Males

15168

M18-39

15168

10K→15K

6.2 - 9.3 mi

Top 90%
×3
+67ft-78ft

Overall

26147

Males

15237

M18-39

15237

15K→20K

9.3 - 12.4 mi

Top 93%
×5
+106ft-86ft

Overall

26947

Males

15561

M18-39

15561

20K→HALF

12.4 - 13.1 mi

Top 91%
×2
+19ft-37ft

Overall

26551

Males

15363

M18-39

15363

HALF→25K

13.1 - 15.5 mi

Top 90%
×4
+66ft-88ft

Overall

26183

Males

15182

M18-39

15182

25K→30K

15.5 - 18.6 mi

Top 91%
×9
+181ft-148ft

Overall

26495

Males

15227

M18-39

15227

30K→20M

18.6 - 20.0 mi

Top 92%
×5
+64ft-50ft

Overall

26802

Males

15294

M18-39

15294

20M→21M

20.0 - 21.0 mi

Top 97%
×8
+106ft-24ft

Overall

28060

Males

15868

M18-39

15868

21M→35K

21.0 - 21.8 mi

Top 97%
×7
+17ft-86ft

Overall

28065

Males

15829

M18-39

15829

35K→23M

21.8 - 23.0 mi

Top 97%
×5
+23ft-63ft

Overall

28243

Males

15926

M18-39

15926

23M→24M

23.0 - 24.0 mi

Top 97%
×6
+12ft-82ft

Overall

28238

Males

15903

M18-39

15903

24M→40K

24.0 - 24.9 mi

Top 97%
×1
+6ft-20ft

Overall

28038

Males

15811

M18-39

15811

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1
+13ft-16ft

Overall

25450

Males

14518

M18-39

14518

25.2M→FINISH

25.2 - 26.2 mi

Top 94%
×2
+22ft-21ft

Overall

27356

Males

15458

M18-39

15458

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
806*
Passed By
1469
Net Change
-781
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26329
5K → 10K300*115+185#26329#26144
10K → 15K127122+5#26144#26139
15K → 20K55200-263#26139#26402
20K → HALF1421-7#26402#26409
HALF → 25K11264+48#26409#26361
25K → 30K88147-59#26361#26420
30K → 20M3482-48#26420#26468
20M → 21M8193-185#26468#26653
21M → 35K4109-105#26653#26758
35K → 23M16171-155#26758#26913
23M → 24M8128-120#26913#27033
24M → 40K770-63#27033#27096
40K → 25.2M163+13#27096#27083
25.2M → FINISH1744-27#27083#27110
TOTALS806*1469-781

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing