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BOSTON MARATHON 2023

Jun Chea

Bib: 25940•M

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:37
Rank: #15751
Start → 5K
25:37 | 8:15/mi
10K· 6.21 mi
50:59
Rank: #15858 (-107)
5K → 10K
25:22 | 8:10/mi
15K· 9.32 mi
1:16:17
Rank: #15703 (+155)
10K → 15K
25:18 | 8:09/mi
20K· 12.43 mi
1:41:31
Rank: #15365 (+338)
15K → 20K
25:14 | 8:07/mi
Half· 13.11 mi
1:47:05
Rank: #15366 (-1)
20K → Half
5:34 | 8:10/mi
25K· 15.53 mi
2:07:02
Rank: #15191 (+175)
Half → 25K
19:57 | 8:14/mi
30K· 18.64 mi
2:32:55
Rank: #14836 (+355)
25K → 30K
25:53 | 8:20/mi
20M
2:44:24
Rank: #14696 (+140)
30K → 20M
11:29 | 8:27/mi
21M
2:53:23
Rank: #14596 (+100)
20M → 21M
8:59 | 8:59/mi
35K· 21.75 mi
2:59:39
Rank: #14586 (+10)
21M → 35K
6:16 | 8:23/mi
23M
3:10:26
Rank: #14526 (+60)
35K → 23M
10:47 | 8:37/mi
24M
3:18:37
Rank: #14412 (+114)
23M → 24M
8:11 | 8:11/mi
40K· 24.85 mi
3:25:47
Rank: #14335 (+77)
24M → 40K
7:10 | 8:23/mi
25.2M
3:28:55
Rank: #14308 (+27)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:37:20
Rank: #14275 (+33)
25.2M → Finish
8:25 | 8:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:05
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time1:50:15
Pace8:25 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:1325:378:1525:37
8:15
-
10K
6.21 mi12:06:3550:598:1225:22
8:10
-0:05
15K
9.32 mi12:31:531:16:178:1125:18
8:09
-0:01
20K
12.43 mi12:57:071:41:318:1025:14
8:07
-0:02
Half
13.11 mi13:02:411:47:058:105:34
8:10
+0:03
25K
15.53 mi13:22:382:07:028:1119:57
8:14
+0:04
30K
18.64 mi13:48:312:32:558:1225:53
8:20
+0:06
20M
20.00 mi14:00:002:44:248:1311:29
8:27
+0:07
21M
21.00 mi14:08:592:53:238:158:59
8:59
+0:32
35K
21.75 mi14:15:152:59:398:166:16
8:23
-0:36
23M
23.00 mi14:26:023:10:268:1710:47
8:37
+0:14
24M
24.00 mi14:34:133:18:378:178:11
8:11
-0:26
40K
24.85 mi14:41:233:25:478:177:10
8:23
+0:12
25.2M
25.20 mi14:44:313:28:558:173:08
9:05
+0:42
Finish
26.22 mi14:52:563:37:208:188:25
8:16
-0:49

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

8:07 /mi

Average Pace

8:18 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:25:13

94% of race

Time at Steady Pace

12:07

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:17 /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 mi11:41:1325:378:1525:37
8:15
#15751
10K
6.21 mi12:06:3550:598:1225:22
8:10
#15858
15K
9.32 mi12:31:531:16:178:1125:18
8:09
#15703
20K
12.43 mi12:57:071:41:318:1025:14
8:07
#15365
Half
13.11 mi13:02:411:47:058:105:34
8:10
#15366
25K
15.53 mi13:22:382:07:028:1119:57
8:14
#15191
30K
18.64 mi13:48:312:32:558:1225:53
8:20
#14836
20M
20.00 mi14:00:002:44:248:1311:29
8:27
#14696
21M
21.00 mi14:08:592:53:238:158:59
8:59
#14596
35K
21.75 mi14:15:152:59:398:166:16
8:23
#14586
23M
23.00 mi14:26:023:10:268:1710:47
8:37
#14526
24M
24.00 mi14:34:133:18:378:178:11
8:11
#14412
40K
24.85 mi14:41:233:25:478:177:10
8:23
#14335
25.2M
25.20 mi14:44:313:28:558:173:08
9:05
#14308
Finish
26.22 mi14:52:563:37:208:188:25
8:16
#14275
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi15751106051060515445(Top 58%)10481(Top 69%)10481(Top 511%)
10K6.21 mi3.10 mi15858-10710645-4010645-4015999(Top 60%)10703(Top 71%)10703(Top 522%)
15K9.32 mi3.11 mi15703+15510584+6110584+6115445(Top 58%)10481(Top 69%)10481(Top 511%)
20K12.43 mi3.11 mi15365+33810434+15010434+15014361(Top 54%)10020(Top 66%)10020(Top 488%)
Half13.11 mi0.68 mi15366-110429+510429+515442(Top 58%)10459(Top 69%)10459(Top 510%)
25K15.53 mi2.42 mi15191+17510338+9110338+9114423(Top 54%)9938(Top 65%)9938(Top 484%)
30K18.64 mi3.11 mi14836+35510176+16210176+16213211(Top 50%)9324(Top 61%)9324(Top 454%)
20M20.00 mi1.36 mi14696+14010098+7810098+7813323(Top 50%)9281(Top 61%)9281(Top 452%)
21M21.00 mi1.00 mi14596+10010032+6610032+6613296(Top 50%)9177(Top 60%)9177(Top 447%)
35K21.75 mi0.75 mi14586+1010012+2010012+2014544(Top 55%)9662(Top 64%)9662(Top 471%)
23M23.00 mi1.25 mi14526+609968+449968+4413847(Top 52%)9299(Top 61%)9299(Top 453%)
24M24.00 mi1.00 mi14412+1149894+749894+7412476(Top 47%)8622(Top 57%)8622(Top 420%)
40K24.85 mi0.85 mi14335+779841+539841+5312573(Top 47%)8581(Top 57%)8581(Top 418%)
25.2M25.20 mi0.35 mi14308+279823+189823+1812974(Top 49%)8754(Top 58%)8754(Top 427%)
Finish26.22 mi1.02 mi14275+339787+369787+3613823(Top 52%)9164(Top 60%)9164(Top 447%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

15445

Males

10481

M50-54

10481

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

15999

Males

10703

M50-54

10703

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

15445

Males

10481

M50-54

10481

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

14361

Males

10020

M50-54

10020

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

15442

Males

10459

M50-54

10459

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

14423

Males

9938

M50-54

9938

25K→30K

15.5 - 18.6 mi

Top 50%
×9stories
+181ft-148ft

Overall

13211

Males

9324

M50-54

9324

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

13323

Males

9281

M50-54

9281

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

13296

Males

9177

M50-54

9177

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

14544

Males

9662

M50-54

9662

35K→23M

21.8 - 23.0 mi

Top 52%
×5stories
+23ft-63ft

Overall

13847

Males

9299

M50-54

9299

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

12476

Males

8622

M50-54

8622

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12573

Males

8581

M50-54

8581

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

12974

Males

8754

M50-54

8754

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2stories
+22ft-21ft

Overall

13823

Males

9164

M50-54

9164

Passing Analysis

Category:
Athletes Passed
2358
Passed By
882
Net Change
+1476
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15751
5K → 10K240347-107#15751#15858
10K → 15K269114+155#15858#15703
15K → 20K38244+338#15703#15365
20K → Half3637-1#15365#15366
Half → 25K22449+175#15366#15191
25K → 30K39843+355#15191#14836
30K → 20M15717+140#14836#14696
20M → 21M13737+100#14696#14596
21M → 35K4939+10#14596#14586
35K → 23M10747+60#14586#14526
23M → 24M13622+114#14526#14412
24M → 40K10124+77#14412#14335
40K → 25.2M4114+27#14335#14308
25.2M → Finish8148+33#14308#14275
TOTALS2358882+1476
📊

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