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BOSTON MARATHON 2023

Kyle Chang

Bib: 26155•M

VA

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
27:32
Rank: #19799
Start → 5K
8:52/mi
27:32 split
10K· 6.21 mi
53:37
Rank: #18676 (+1123)
5K → 10K
8:24/mi
26:05 split
15K· 9.32 mi
1:20:11
Rank: #18491 (+185)
10K → 15K
8:33/mi
26:34 split
20K· 12.43 mi
1:47:17
Rank: #18397 (+94)
15K → 20K
8:43/mi
27:06 split
Half· 13.11 mi
1:52:57
Rank: #18296 (+101)
20K → Half
8:18/mi
5:40 split
25K· 15.53 mi
2:14:07
Rank: #18167 (+129)
Half → 25K
8:44/mi
21:10 split
30K· 18.64 mi
2:41:41
Rank: #17798 (+369)
25K → 30K
8:52/mi
27:34 split
20M
2:54:08
Rank: #17761 (+37)
30K → 20M
9:10/mi
12:27 split
21M
3:03:56
Rank: #17732 (+29)
20M → 21M
9:48/mi
9:48 split
35K· 21.75 mi
3:10:43
Rank: #17742 (-10)
21M → 35K
9:04/mi
6:47 split
23M
3:22:14
Rank: #17716 (+26)
35K → 23M
9:12/mi
11:31 split
24M
3:31:13
Rank: #17708 (+8)
23M → 24M
8:59/mi
8:59 split
40K· 24.85 mi
3:39:01
Rank: #17686 (+22)
24M → 40K
9:07/mi
7:48 split
25.2M
3:42:18
Rank: #17653 (+33)
40K → 25.2M
9:31/mi
3:17 split
Finish· 26.22 mi
3:50:47
Rank: #17517 (+136)
25.2M → Finish
8:19/mi
8:29 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:57
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time1:57:50
Pace8:59 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:4627:328:5227:32
8:52
-
10K
6.21 mi12:09:5153:378:3826:05
8:24
-0:28
15K
9.32 mi12:36:251:20:118:3626:34
8:33
+0:09
20K
12.43 mi13:03:311:47:178:3827:06
8:43
+0:10
Half
13.11 mi13:09:111:52:578:375:40
8:18
-0:25
25K
15.53 mi13:30:212:14:078:3821:10
8:44
+0:26
30K
18.64 mi13:57:552:41:418:4027:34
8:52
+0:08
20M
20.00 mi14:10:222:54:088:4212:27
9:10
+0:18
21M
21.00 mi14:20:103:03:568:469:48
9:48
+0:38
35K
21.75 mi14:26:573:10:438:466:47
9:04
-0:44
23M
23.00 mi14:38:283:22:148:4811:31
9:12
+0:08
24M
24.00 mi14:47:273:31:138:488:59
8:59
-0:13
40K
24.85 mi14:55:153:39:018:497:48
9:07
+0:08
25.2M
25.20 mi14:58:323:42:188:493:17
9:31
+0:24
Finish
26.22 mi15:07:013:50:478:498:29
8:19
-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

8:18 /mi

Average Pace

8:49 /mi

Slowest Pace

9:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:44

84% of race

Time at Steady Pace

27:15

12% of race

Time at Slower Pace

9:48

4% of race

Average Pace: 8:48 /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 mi11:43:4627:328:5227:32
8:52
#19799
10K
6.21 mi12:09:5153:378:3826:05
8:24
#18676
15K
9.32 mi12:36:251:20:118:3626:34
8:33
#18491
20K
12.43 mi13:03:311:47:178:3827:06
8:43
#18397
Half
13.11 mi13:09:111:52:578:375:40
8:18
#18296
25K
15.53 mi13:30:212:14:078:3821:10
8:44
#18167
30K
18.64 mi13:57:552:41:418:4027:34
8:52
#17798
20M
20.00 mi14:10:222:54:088:4212:27
9:10
#17761
21M
21.00 mi14:20:103:03:568:469:48
9:48
#17732
35K
21.75 mi14:26:573:10:438:466:47
9:04
#17742
23M
23.00 mi14:38:283:22:148:4811:31
9:12
#17716
24M
24.00 mi14:47:273:31:138:488:59
8:59
#17708
40K
24.85 mi14:55:153:39:018:497:48
9:07
#17686
25.2M
25.20 mi14:58:323:42:188:493:17
9:31
#17653
Finish
26.22 mi15:07:013:50:478:498:29
8:19
#17517
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi19799120881208818146(Top 68%)11537(Top 76%)11537(Top 218%)
10K6.21 mi3.10 mi18676+112311727+36111727+36117551(Top 66%)11318(Top 75%)11318(Top 214%)
15K9.32 mi3.11 mi18491+18511659+6811659+6818146(Top 68%)11537(Top 76%)11537(Top 218%)
20K12.43 mi3.11 mi18397+9411627+3211627+3218242(Top 69%)11582(Top 76%)11582(Top 219%)
Half13.11 mi0.68 mi18296+10111585+4211585+4216496(Top 62%)10888(Top 72%)10888(Top 206%)
25K15.53 mi2.42 mi18167+12911514+7111514+7117527(Top 66%)11209(Top 74%)11209(Top 212%)
30K18.64 mi3.11 mi17798+36911342+17211342+17216495(Top 62%)10690(Top 70%)10690(Top 202%)
20M20.00 mi1.36 mi17761+3711308+3411308+3417353(Top 65%)10968(Top 72%)10968(Top 208%)
21M21.00 mi1.00 mi17732+2911283+2511283+2517244(Top 65%)10892(Top 72%)10892(Top 206%)
35K21.75 mi0.75 mi17742-1011269+1411269+1418143(Top 68%)11206(Top 74%)11206(Top 212%)
23M23.00 mi1.25 mi17716+2611244+2511244+2517036(Top 64%)10710(Top 71%)10710(Top 203%)
24M24.00 mi1.00 mi17708+811231+1311231+1317134(Top 64%)10680(Top 70%)10680(Top 202%)
40K24.85 mi0.85 mi17686+2211214+1711214+1716712(Top 63%)10450(Top 69%)10450(Top 198%)
25.2M25.20 mi0.35 mi17653+3311199+1511199+1515258(Top 57%)9799(Top 65%)9799(Top 185%)
Finish26.22 mi1.02 mi17517+13611123+7611123+7614248(Top 54%)9367(Top 62%)9367(Top 177%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

18146

Males

11537

M18-39

11537

5K→10K

3.1 - 6.2 mi

Top 66%
×5story building
+79ft-138ft

Overall

17551

Males

11318

M18-39

11318

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

18146

Males

11537

M18-39

11537

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

18242

Males

11582

M18-39

11582

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

16496

Males

10888

M18-39

10888

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

17527

Males

11209

M18-39

11209

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

16495

Males

10690

M18-39

10690

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

17353

Males

10968

M18-39

10968

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

17244

Males

10892

M18-39

10892

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

18143

Males

11206

M18-39

11206

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

17036

Males

10710

M18-39

10710

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

17134

Males

10680

M18-39

10680

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16712

Males

10450

M18-39

10450

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15258

Males

9799

M18-39

9799

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14248

Males

9367

M18-39

9367

Passing Analysis

Category:
Athletes Passed
3047
Passed By
765
Net Change
+2282
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19799
5K → 10K118966+1123#19799#18676
10K → 15K28196+185#18676#18491
15K → 20K204110+94#18491#18397
20K → Half1032+101#18397#18296
Half → 25K19162+129#18296#18167
25K → 30K40637+369#18167#17798
30K → 20M11073+37#17798#17761
20M → 21M9869+29#17761#17732
21M → 35K4959-10#17732#17742
35K → 23M9670+26#17742#17716
23M → 24M6961+8#17716#17708
24M → 40K6240+22#17708#17686
40K → 25.2M4512+33#17686#17653
25.2M → Finish1448+136#17653#17517
TOTALS3047765+2282
📊

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