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BOSTON MARATHON 2023

Jirayu Chantanakomes

Bib: 27645•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:59
Rank: #16596
Start → 5K
25:59 | 8:22/mi
10K· 6.21 mi
52:15
Rank: #17269 (-673)
5K → 10K
26:16 | 8:27/mi
15K· 9.32 mi
1:18:44
Rank: #17503 (-234)
10K → 15K
26:29 | 8:31/mi
20K· 12.43 mi
1:46:07
Rank: #17820 (-317)
15K → 20K
27:23 | 8:49/mi
Half· 13.11 mi
1:52:09
Rank: #17936 (-116)
20K → Half
6:02 | 8:51/mi
25K· 15.53 mi
2:14:14
Rank: #18204 (-268)
Half → 25K
22:05 | 9:06/mi
30K· 18.64 mi
2:43:06
Rank: #18278 (-74)
25K → 30K
28:52 | 9:17/mi
20M
2:55:27
Rank: #18166 (+112)
30K → 20M
12:21 | 9:05/mi
21M
3:04:57
Rank: #18006 (+160)
20M → 21M
9:30 | 9:30/mi
35K· 21.75 mi
3:11:49
Rank: #18064 (-58)
21M → 35K
6:52 | 9:11/mi
23M
3:23:59
Rank: #18147 (-83)
35K → 23M
12:10 | 9:43/mi
24M
3:33:24
Rank: #18199 (-52)
23M → 24M
9:25 | 9:25/mi
40K· 24.85 mi
3:41:24
Rank: #18190 (+9)
24M → 40K
8:00 | 9:21/mi
25.2M
3:44:59
Rank: #18212 (-22)
40K → 25.2M
3:35 | 10:23/mi
Finish· 26.22 mi
3:54:32
Rank: #18284 (-72)
25.2M → Finish
9:33 | 9:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:09
Pace8:33 /mi
2nd Half
Distance13.11 mi
Time2:02:23
Pace9:20 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:0325:598:2225:59
8:22
-
10K
6.21 mi12:09:1952:158:2526:16
8:27
+0:05
15K
9.32 mi12:35:481:18:448:2726:29
8:31
+0:04
20K
12.43 mi13:03:111:46:078:3227:23
8:49
+0:18
Half
13.11 mi13:09:131:52:098:336:02
8:51
+0:02
25K
15.53 mi13:31:182:14:148:3822:05
9:06
+0:15
30K
18.64 mi14:00:102:43:068:4528:52
9:17
+0:11
20M
20.00 mi14:12:312:55:278:4612:21
9:05
-0:12
21M
21.00 mi14:22:013:04:578:489:30
9:30
+0:25
35K
21.75 mi14:28:533:11:498:496:52
9:11
-0:19
23M
23.00 mi14:41:033:23:598:5212:10
9:43
+0:32
24M
24.00 mi14:50:283:33:248:549:25
9:25
-0:18
40K
24.85 mi14:58:283:41:248:548:00
9:21
-0:04
25.2M
25.20 mi15:02:033:44:598:563:35
10:23
+1:02
Finish
26.22 mi15:11:363:54:328:579:33
9:22
-1:01

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

8:22 /mi

Average Pace

8:57 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:09

48% of race

Time at Steady Pace

1:37:08

41% of race

Time at Slower Pace

25:15

11% of race

Average Pace: 8:57 /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 mi11:43:0325:598:2225:59
8:22
#16596
10K
6.21 mi12:09:1952:158:2526:16
8:27
#17269
15K
9.32 mi12:35:481:18:448:2726:29
8:31
#17503
20K
12.43 mi13:03:111:46:078:3227:23
8:49
#17820
Half
13.11 mi13:09:131:52:098:336:02
8:51
#17936
25K
15.53 mi13:31:182:14:148:3822:05
9:06
#18204
30K
18.64 mi14:00:102:43:068:4528:52
9:17
#18278
20M
20.00 mi14:12:312:55:278:4612:21
9:05
#18166
21M
21.00 mi14:22:013:04:578:489:30
9:30
#18006
35K
21.75 mi14:28:533:11:498:496:52
9:11
#18064
23M
23.00 mi14:41:033:23:598:5212:10
9:43
#18147
24M
24.00 mi14:50:283:33:248:549:25
9:25
#18199
40K
24.85 mi14:58:283:41:248:548:00
9:21
#18190
25.2M
25.20 mi15:02:033:44:598:563:35
10:23
#18212
Finish
26.22 mi15:11:363:54:328:579:33
9:22
#18284
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi16596109141091417964(Top 67%)11474(Top 76%)11474(Top 217%)
10K6.21 mi3.10 mi17269-67311152-23811152-23817949(Top 67%)11481(Top 76%)11481(Top 217%)
15K9.32 mi3.11 mi17503-23411266-11411266-11417964(Top 67%)11474(Top 76%)11474(Top 217%)
20K12.43 mi3.11 mi17820-31711383-11711383-11718758(Top 70%)11792(Top 78%)11792(Top 223%)
Half13.11 mi0.68 mi17936-11611435-5211435-5219673(Top 74%)12158(Top 80%)12158(Top 230%)
25K15.53 mi2.42 mi18204-26811533-9811533-9819436(Top 73%)12022(Top 79%)12022(Top 227%)
30K18.64 mi3.11 mi18278-7411530+311530+318578(Top 70%)11594(Top 76%)11594(Top 219%)
20M20.00 mi1.36 mi18166+11211466+6411466+6416984(Top 64%)10816(Top 71%)10816(Top 205%)
21M21.00 mi1.00 mi18006+16011391+7511391+7515948(Top 60%)10332(Top 68%)10332(Top 195%)
35K21.75 mi0.75 mi18064-5811410-1911410-1918638(Top 70%)11431(Top 75%)11431(Top 216%)
23M23.00 mi1.25 mi18147-8311428-1811428-1819128(Top 72%)11623(Top 77%)11623(Top 220%)
24M24.00 mi1.00 mi18199-5211439-1111439-1118897(Top 71%)11488(Top 76%)11488(Top 217%)
40K24.85 mi0.85 mi18190+911421+1811421+1817766(Top 67%)10925(Top 72%)10925(Top 207%)
25.2M25.20 mi0.35 mi18212-2211424-311424-318721(Top 70%)11349(Top 75%)11349(Top 215%)
Finish26.22 mi1.02 mi18284-7211451-2711451-2719639(Top 74%)11815(Top 78%)11815(Top 224%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21stories
+97ft-345ft

Overall

17964

Males

11474

M18-39

11474

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

17949

Males

11481

M18-39

11481

10K→15K

6.2 - 9.3 mi

Top 67%
×3stories
+67ft-78ft

Overall

17964

Males

11474

M18-39

11474

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

18758

Males

11792

M18-39

11792

20K→Half

12.4 - 13.1 mi

Top 74%
×2stories
+19ft-37ft

Overall

19673

Males

12158

M18-39

12158

Half→25K

13.1 - 15.5 mi

Top 73%
×4stories
+66ft-88ft

Overall

19436

Males

12022

M18-39

12022

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

18578

Males

11594

M18-39

11594

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

16984

Males

10816

M18-39

10816

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

15948

Males

10332

M18-39

10332

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

18638

Males

11431

M18-39

11431

35K→23M

21.8 - 23.0 mi

Top 72%
×5stories
+23ft-63ft

Overall

19128

Males

11623

M18-39

11623

23M→24M

23.0 - 24.0 mi

Top 71%
×6stories
+12ft-82ft

Overall

18897

Males

11488

M18-39

11488

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17766

Males

10925

M18-39

10925

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18721

Males

11349

M18-39

11349

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

19639

Males

11815

M18-39

11815

Passing Analysis

Category:
Athletes Passed
1062
Passed By
2750
Net Change
-1688
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16596
5K → 10K104777-673#16596#17269
10K → 15K106340-234#17269#17503
15K → 20K90407-317#17503#17820
20K → Half7123-116#17820#17936
Half → 25K59327-268#17936#18204
25K → 30K161235-74#18204#18278
30K → 20M14634+112#18278#18166
20M → 21M18020+160#18166#18006
21M → 35K3189-58#18006#18064
35K → 23M54137-83#18064#18147
23M → 24M3183-52#18147#18199
24M → 40K5243+9#18199#18190
40K → 25.2M1840-22#18190#18212
25.2M → Finish2395-72#18212#18284
TOTALS10622750-1688
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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