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BOSTON MARATHON 2026

Byung Choi

Bib: 25456β€’M

CA

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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 (M65-69)
#0 / 774
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
34:15
3.11 mi
Rank: #28046
Start β†’ 5K
34:15 | 11:02/mi
10K
1:04:24
6.21 mi
Rank: #26744 (+1302)
5K β†’ 10K
30:09 | 9:43/mi
15K
1:35:45
9.32 mi
Rank: #26465 (+279)
10K β†’ 15K
31:21 | 10:06/mi
20K
2:08:17
12.43 mi
Rank: #26358 (+107)
15K β†’ 20K
32:32 | 10:29/mi
HALF
2:15:18
13.11 mi
Rank: #26361 (-3)
20K β†’ HALF
7:01 | 10:18/mi
25K
2:46:15
15.53 mi
Rank: #26851 (-490)
HALF β†’ 25K
30:57 | 12:46/mi
30K
3:25:14
18.64 mi
Rank: #27022 (-171)
25K β†’ 30K
38:59 | 12:33/mi
20M
3:45:10
20.00 mi
Rank: #27216 (-194)
30K β†’ 20M
19:56 | 14:41/mi
21M
3:59:10
21.00 mi
Rank: #27257 (-41)
20M β†’ 21M
14:00 | 14:00/mi
35K
4:07:07
21.75 mi
Rank: #27192 (+65)
21M β†’ 35K
7:57 | 10:38/mi
23M
4:22:50
23.00 mi
Rank: #27183 (+9)
35K β†’ 23M
15:43 | 12:34/mi
24M
4:37:37
24.00 mi
Rank: #27310 (-127)
23M β†’ 24M
14:47 | 14:47/mi
40K
4:47:50
24.85 mi
Rank: #27270 (+40)
24M β†’ 40K
10:13 | 11:57/mi
25.2M
4:51:56
25.20 mi
Rank: #27246 (+24)
40K β†’ 25.2M
4:06 | 11:54/mi
FINISH
5:02:10
26.22 mi
Rank: #27182 (+64)
25.2M β†’ FINISH
10:14 | 10:03/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:15:18
Pace10:20 /mi
2nd Half
Distance13.11 mi
Time2:46:52
Pace12:44 /mi
πŸ“ŠPositive Split: 23.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:0734:1511:0234:15
11:02
-
10K
6.21 mi12:11:161:04:2410:2230:09
9:43
-1:19
15K
9.32 mi12:42:371:35:4510:1731:21
10:06
+0:23
20K
12.43 mi13:15:092:08:1710:2032:32
10:29
+0:23
HALF
13.11 mi13:22:102:15:1810:207:01
10:18
-0:11
25K
15.53 mi13:53:072:46:1510:4330:57
12:46
+2:28
30K
18.64 mi14:32:063:25:1411:0138:59
12:33
-0:13
20M
20.00 mi14:52:023:45:1011:1619:56
14:41
+2:08
21M
21.00 mi15:06:023:59:1011:2414:00
14:00
-0:41
35K
21.75 mi15:13:594:07:0711:227:57
10:38
-3:22
23M
23.00 mi15:29:424:22:5011:2615:43
12:34
+1:56
24M
24.00 mi15:44:294:37:3711:3514:47
14:47
+2:13
40K
24.85 mi15:54:424:47:5011:3510:13
11:57
-2:50
25.2M
25.20 mi15:58:484:51:5611:364:06
11:54
-0:03
FINISH
26.22 mi16:09:025:02:1011:3210:14
10:03
-1:51

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

9:43 /mi

Average Pace

11:32 /mi

Slowest Pace

14:47 /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

2:33:29

51% of race

Time at Steady Pace

1:09:01

23% of race

Time at Slower Pace

1:19:40

26% of race

Average Pace: 11:31 /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 mi11:41:0734:1511:0234:15
11:02
#28046
10K
6.21 mi12:11:161:04:2410:2230:09
9:43
#26744
15K
9.32 mi12:42:371:35:4510:1731:21
10:06
#26465
20K
12.43 mi13:15:092:08:1710:2032:32
10:29
#26358
HALF
13.11 mi13:22:102:15:1810:207:01
10:18
#26361
25K
15.53 mi13:53:072:46:1510:4330:57
12:46
#26851
30K
18.64 mi14:32:063:25:1411:0138:59
12:33
#27022
20M
20.00 mi14:52:023:45:1011:1619:56
14:41
#27216
21M
21.00 mi15:06:023:59:1011:2414:00
14:00
#27257
35K
21.75 mi15:13:594:07:0711:227:57
10:38
#27192
23M
23.00 mi15:29:424:22:5011:2615:43
12:34
#27183
24M
24.00 mi15:44:294:37:3711:3514:47
14:47
#27310
40K
24.85 mi15:54:424:47:5011:3510:13
11:57
#27270
25.2M
25.20 mi15:58:484:51:5611:364:06
11:54
#27246
FINISH
26.22 mi16:09:025:02:1011:3210:14
10:03
#27182
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi28046160321603225901(Top 89%)15136(Top 93%)15136(Top 1956%)
10K6.21 mi3.10 mi26744+130215498+53415498+53425105(Top 87%)14781(Top 90%)14781(Top 1910%)
15K9.32 mi3.11 mi26465+27915386+11215386+11225901(Top 89%)15136(Top 93%)15136(Top 1956%)
20K12.43 mi3.11 mi26358+10715325+6115325+6126063(Top 90%)15191(Top 93%)15191(Top 1963%)
HALF13.11 mi0.68 mi26361-315326-115326-126267(Top 91%)15259(Top 93%)15259(Top 1971%)
25K15.53 mi2.42 mi26851-49015522-19615522-19628100(Top 97%)15986(Top 98%)15986(Top 2065%)
30K18.64 mi3.11 mi27022-17115565-4315565-4327334(Top 94%)15591(Top 95%)15591(Top 2014%)
20M20.00 mi1.36 mi27216-19415647-8215647-8228487(Top 98%)16082(Top 98%)16082(Top 2078%)
21M21.00 mi1.00 mi27257-4115656-915656-927329(Top 94%)15516(Top 95%)15516(Top 2005%)
35K21.75 mi0.75 mi27192+6515626+3015626+3024553(Top 85%)14179(Top 87%)14179(Top 1832%)
23M23.00 mi1.25 mi27183+915611+1515611+1526852(Top 93%)15248(Top 93%)15248(Top 1970%)
24M24.00 mi1.00 mi27310-12715654-4315654-4328654(Top 99%)16124(Top 99%)16124(Top 2083%)
40K24.85 mi0.85 mi27270+4015627+2715627+2725811(Top 89%)14668(Top 90%)14668(Top 1895%)
25.2M25.20 mi0.35 mi27246+2415610+1715610+1724245(Top 84%)13909(Top 85%)13909(Top 1797%)
FINISH26.22 mi1.02 mi27182+6415578+3215578+3223958(Top 83%)13779(Top 84%)13779(Top 1780%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
Γ—21
+97ft-345ft

Overall

25901

Males

15136

M65-69

15136

5K→10K

3.1 - 6.2 mi

Top 87%
Γ—5
+79ft-138ft

Overall

25105

Males

14781

M65-69

14781

10K→15K

6.2 - 9.3 mi

Top 89%
Γ—3
+67ft-78ft

Overall

25901

Males

15136

M65-69

15136

15K→20K

9.3 - 12.4 mi

Top 90%
Γ—5
+106ft-86ft

Overall

26063

Males

15191

M65-69

15191

20K→HALF

12.4 - 13.1 mi

Top 91%
Γ—2
+19ft-37ft

Overall

26267

Males

15259

M65-69

15259

HALF→25K

13.1 - 15.5 mi

Top 97%
Γ—4
+66ft-88ft

Overall

28100

Males

15986

M65-69

15986

25K→30K

15.5 - 18.6 mi

Top 94%
Γ—9
+181ft-148ft

Overall

27334

Males

15591

M65-69

15591

30K→20M

18.6 - 20.0 mi

Top 98%
Γ—5
+64ft-50ft

Overall

28487

Males

16082

M65-69

16082

20M→21M

20.0 - 21.0 mi

Top 94%
Γ—8
+106ft-24ft

Overall

27329

Males

15516

M65-69

15516

21M→35K

21.0 - 21.8 mi

Top 85%
Γ—7
+17ft-86ft

Overall

24553

Males

14179

M65-69

14179

35K→23M

21.8 - 23.0 mi

Top 93%
Γ—5
+23ft-63ft

Overall

26852

Males

15248

M65-69

15248

23M→24M

23.0 - 24.0 mi

Top 99%
Γ—6
+12ft-82ft

Overall

28654

Males

16124

M65-69

16124

24M→40K

24.0 - 24.9 mi

Top 89%
Γ—1
+6ft-20ft

Overall

25811

Males

14668

M65-69

14668

40K→25.2M

24.9 - 25.2 mi

Top 84%
Γ—1
+13ft-16ft

Overall

24245

Males

13909

M65-69

13909

25.2M→FINISH

25.2 - 26.2 mi

Top 83%
Γ—2
+22ft-21ft

Overall

23958

Males

13779

M65-69

13779

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2133
Passed By
1269
Net Change
+864
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#28046
5K β†’ 10K13031+1302#28046#26744
10K β†’ 15K29415+279#26744#26465
15K β†’ 20K16558+107#26465#26358
20K β†’ HALF2528-3#26358#26361
HALF β†’ 25K9499-490#26361#26851
25K β†’ 30K63234-171#26851#27022
30K β†’ 20M4198-194#27022#27216
20M β†’ 21M2263-41#27216#27257
21M β†’ 35K672+65#27257#27192
35K β†’ 23M3930+9#27192#27183
23M β†’ 24M8135-127#27183#27310
24M β†’ 40K444+40#27310#27270
40K β†’ 25.2M262+24#27270#27246
25.2M β†’ FINISH640+64#27246#27182
TOTALS21331269+864
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