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BOSTON MARATHON 2023

Wei-Chiang Chen

Bib: 26674•M

MA

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:13/mi
28:38
↑ 97↓ 3451.5%
10K· 6.21 mi
8:30/mi
55:04
↑ 79↓ 1380.4%
15K· 9.32 mi
8:31/mi
1:21:31
↑ 67↓ 78
20K· 12.43 mi
8:40/mi
1:48:27
↑ 106↓ 860.1%
Half· 13.11 mi
8:02/mi
1:53:56
↑ 19↓ 370.5%
25K· 15.53 mi
9:16/mi
2:16:23
↑ 66↓ 880.2%
30K· 18.64 mi
10:25/mi
2:48:46
↑ 181↓ 1480.2%
20M
11:50/mi
3:04:51
↑ 64↓ 500.2%
21M
11:50/mi
3:16:41
↑ 106↓ 241.6%
35K· 21.75 mi
10:39/mi
3:24:39
↑ 17↓ 861.7%
23M
11:30/mi
3:39:03
↑ 23↓ 630.6%
24M
12:51/mi
3:51:54
↓ 821.3%
40K· 24.85 mi
10:34/mi
4:00:56
↓ 200.3%
25.2M
12:19/mi
4:05:11
↑ 13↓ 160.2%
Finish· 26.22 mi
11:07/mi
4:16:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:56
Pace8:41 /mi
2nd Half
Distance13.11 mi
Time2:22:35
Pace10:53 /mi
📊Positive Split: 25.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:0628:389:1328:38
9:13
-
10K
6.21 mi12:11:3255:048:5226:26
8:30
-0:43
15K
9.32 mi12:37:591:21:318:4526:27
8:31
+0:01
20K
12.43 mi13:04:551:48:278:4426:56
8:40
+0:09
Half
13.11 mi13:10:241:53:568:415:29
8:02
-0:38
25K
15.53 mi13:32:512:16:238:4722:27
9:16
+1:14
30K
18.64 mi14:05:142:48:469:0332:23
10:25
+1:09
20M
20.00 mi14:21:193:04:519:1516:05
11:50
+1:25
21M
21.00 mi14:33:093:16:419:2211:50
11:50
0:00
35K
21.75 mi14:41:073:24:399:257:58
10:39
-1:11
23M
23.00 mi14:55:313:39:039:3114:24
11:30
+0:51
24M
24.00 mi15:08:223:51:549:4012:51
12:51
+1:21
40K
24.85 mi15:17:244:00:569:429:02
10:34
-2:17
25.2M
25.20 mi15:21:394:05:119:444:15
12:19
+1:45
Finish
26.22 mi15:32:594:16:319:4711:20
11:07
-1:12

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

8:02 /mi

Average Pace

9:47 /mi

Slowest Pace

12:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16:23

53% of race

Time at Steady Pace

1:00:43

24% of race

Time at Slower Pace

59:25

23% of race

Average Pace: 9:47 /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 mi11:45:0628:389:1328:38
9:13
#21257
10K
6.21 mi12:11:3255:048:5226:26
8:30
#19992
15K
9.32 mi12:37:591:21:318:4526:27
8:31
#19312
20K
12.43 mi13:04:551:48:278:4426:56
8:40
#18936
Half
13.11 mi13:10:241:53:568:415:29
8:02
#18748
25K
15.53 mi13:32:512:16:238:4722:27
9:16
#18993
30K
18.64 mi14:05:142:48:469:0332:23
10:25
#19841
20M
20.00 mi14:21:193:04:519:1516:05
11:50
#20406
21M
21.00 mi14:33:093:16:419:2211:50
11:50
#20564
35K
21.75 mi14:41:073:24:399:257:58
10:39
#20663
23M
23.00 mi14:55:313:39:039:3114:24
11:30
#20869
24M
24.00 mi15:08:223:51:549:4012:51
12:51
#21253
40K
24.85 mi15:17:244:00:569:429:02
10:34
#21252
25.2M
25.20 mi15:21:394:05:119:444:15
12:19
#21289
Finish
26.22 mi15:32:594:16:319:4711:20
11:07
#21468
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21257127321273217903(Top 67%)11447(Top 75%)11447(Top 217%)
10K6.21 mi3.10 mi19992+126512211+52112211+52118301(Top 69%)11624(Top 77%)11624(Top 220%)
15K9.32 mi3.11 mi19312+68011970+24111970+24117903(Top 67%)11447(Top 75%)11447(Top 217%)
20K12.43 mi3.11 mi18936+37611831+13911831+13917925(Top 67%)11438(Top 75%)11438(Top 216%)
Half13.11 mi0.68 mi18748+18811762+6911762+6914665(Top 55%)10185(Top 67%)10185(Top 193%)
25K15.53 mi2.42 mi18993-24511854-9211854-9220051(Top 75%)12310(Top 81%)12310(Top 233%)
30K18.64 mi3.11 mi19841-84812182-32812182-32822049(Top 83%)13090(Top 86%)13090(Top 248%)
20M20.00 mi1.36 mi20406-56512418-23612418-23623988(Top 90%)13889(Top 92%)13889(Top 263%)
21M21.00 mi1.00 mi20564-15812478-6012478-6022471(Top 84%)13186(Top 87%)13186(Top 249%)
35K21.75 mi0.75 mi20663-9912520-4212520-4222658(Top 85%)13234(Top 87%)13234(Top 250%)
23M23.00 mi1.25 mi20869-20612586-6612586-6623243(Top 87%)13499(Top 89%)13499(Top 255%)
24M24.00 mi1.00 mi21253-38412750-16412750-16425366(Top 95%)14481(Top 95%)14481(Top 274%)
40K24.85 mi0.85 mi21252+112741+912741+921358(Top 80%)12524(Top 83%)12524(Top 237%)
25.2M25.20 mi0.35 mi21289-3712756-1512756-1522990(Top 86%)13311(Top 88%)13311(Top 252%)
Finish26.22 mi1.02 mi21468-17912827-7112827-7124164(Top 91%)13907(Top 92%)13907(Top 263%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21story building
+97ft-345ft

Overall

17903

Males

11447

M18-39

11447

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

18301

Males

11624

M18-39

11624

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+67ft-78ft

Overall

17903

Males

11447

M18-39

11447

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17925

Males

11438

M18-39

11438

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

14665

Males

10185

M18-39

10185

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

20051

Males

12310

M18-39

12310

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

22049

Males

13090

M18-39

13090

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

23988

Males

13889

M18-39

13889

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

22471

Males

13186

M18-39

13186

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

22658

Males

13234

M18-39

13234

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

23243

Males

13499

M18-39

13499

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

25366

Males

14481

M18-39

14481

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21358

Males

12524

M18-39

12524

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

22990

Males

13311

M18-39

13311

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2story building
+22ft-21ft

Overall

24164

Males

13907

M18-39

13907

Passing Analysis

Category:
Athletes Passed
2836
Passed By
3047
Net Change
-211
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21257
5K → 10K129328+1265#21257#19992
10K → 15K70121+680#19992#19312
15K → 20K40630+376#19312#18936
20K → Half1880+188#18936#18748
Half → 25K65310-245#18748#18993
25K → 30K28876-848#18993#19841
30K → 20M11576-565#19841#20406
20M → 21M29187-158#20406#20564
21M → 35K19118-99#20564#20663
35K → 23M29235-206#20663#20869
23M → 24M5389-384#20869#21253
24M → 40K4948+1#21253#21252
40K → 25.2M744-37#21252#21289
25.2M → Finish6185-179#21289#21468
TOTALS28363047-211
📊

Passing Visuals

Category:
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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