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BOSTON MARATHON 2023

Ken Jiang

Bib: 14436•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 34%
Gender (Male)
#0 / 15176
Top 49%
Masters (Masters Men)
#0 / 9891
Top 38%
Division (M50-54)
#0 / 2052
Top 35%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:52
Rank: #11313
Start → 5K
23:52 | 7:41/mi
10K· 6.21 mi
47:18
Rank: #11033 (+280)
5K → 10K
23:26 | 7:33/mi
15K· 9.32 mi
1:10:45
Rank: #10854 (+179)
10K → 15K
23:27 | 7:33/mi
20K· 12.43 mi
1:34:16
Rank: #10583 (+271)
15K → 20K
23:31 | 7:34/mi
Half· 13.11 mi
1:39:21
Rank: #10529 (+54)
20K → Half
5:05 | 7:27/mi
25K· 15.53 mi
1:57:50
Rank: #10356 (+173)
Half → 25K
18:29 | 7:37/mi
30K· 18.64 mi
2:21:58
Rank: #10102 (+254)
25K → 30K
24:08 | 7:46/mi
20M
2:32:25
Rank: #9910 (+192)
30K → 20M
10:27 | 7:41/mi
21M
2:40:21
Rank: #9709 (+201)
20M → 21M
7:56 | 7:56/mi
35K· 21.75 mi
2:45:56
Rank: #9639 (+70)
21M → 35K
5:35 | 7:28/mi
23M
2:55:38
Rank: #9512 (+127)
35K → 23M
9:42 | 7:45/mi
24M
3:03:13
Rank: #9434 (+78)
23M → 24M
7:35 | 7:35/mi
40K· 24.85 mi
3:09:46
Rank: #9339 (+95)
24M → 40K
6:33 | 7:40/mi
25.2M
3:12:35
Rank: #9298 (+41)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
3:19:56
Rank: #9179 (+119)
25.2M → Finish
7:21 | 7:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:21
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:40:35
Pace7:40 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1423:527:4123:52
7:41
-
10K
6.21 mi11:16:4047:187:3723:26
7:33
-0:08
15K
9.32 mi11:40:071:10:457:3523:27
7:33
0:00
20K
12.43 mi12:03:381:34:167:3523:31
7:34
+0:01
Half
13.11 mi12:08:431:39:217:355:05
7:27
-0:07
25K
15.53 mi12:27:121:57:507:3518:29
7:37
+0:10
30K
18.64 mi12:51:202:21:587:3724:08
7:46
+0:09
20M
20.00 mi13:01:472:32:257:3710:27
7:41
-0:05
21M
21.00 mi13:09:432:40:217:387:56
7:56
+0:15
35K
21.75 mi13:15:182:45:567:385:35
7:28
-0:28
23M
23.00 mi13:25:002:55:387:389:42
7:45
+0:17
24M
24.00 mi13:32:353:03:137:387:35
7:35
-0:10
40K
24.85 mi13:39:083:09:467:386:33
7:40
+0:05
25.2M
25.20 mi13:41:573:12:357:392:49
8:10
+0:30
Finish
26.22 mi13:49:183:19:567:387:21
7:13
-0:57

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

7:13 /mi

Average Pace

7:38 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:07

99% of race

Time at Steady Pace

2:49

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:38 /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 mi10:53:1423:527:4123:52
7:41
#11313
10K
6.21 mi11:16:4047:187:3723:26
7:33
#11033
15K
9.32 mi11:40:071:10:457:3523:27
7:33
#10854
20K
12.43 mi12:03:381:34:167:3523:31
7:34
#10583
Half
13.11 mi12:08:431:39:217:355:05
7:27
#10529
25K
15.53 mi12:27:121:57:507:3518:29
7:37
#10356
30K
18.64 mi12:51:202:21:587:3724:08
7:46
#10102
20M
20.00 mi13:01:472:32:257:3710:27
7:41
#9910
21M
21.00 mi13:09:432:40:217:387:56
7:56
#9709
35K
21.75 mi13:15:182:45:567:385:35
7:28
#9639
23M
23.00 mi13:25:002:55:387:389:42
7:45
#9512
24M
24.00 mi13:32:353:03:137:387:35
7:35
#9434
40K
24.85 mi13:39:083:09:467:386:33
7:40
#9339
25.2M
25.20 mi13:41:573:12:357:392:49
8:10
#9298
Finish
26.22 mi13:49:183:19:567:387:21
7:13
#9179
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi113138797879710578(Top 40%)8435(Top 56%)8435(Top 411%)
10K6.21 mi3.10 mi11033+2808670+1278670+12710842(Top 41%)8597(Top 57%)8597(Top 419%)
15K9.32 mi3.11 mi10854+1798577+938577+9310578(Top 40%)8435(Top 56%)8435(Top 411%)
20K12.43 mi3.11 mi10583+2718451+1268451+1269872(Top 37%)7996(Top 53%)7996(Top 390%)
Half13.11 mi0.68 mi10529+548433+188433+189917(Top 37%)8031(Top 53%)8031(Top 391%)
25K15.53 mi2.42 mi10356+1738317+1168317+1169759(Top 37%)7846(Top 52%)7846(Top 382%)
30K18.64 mi3.11 mi10102+2548149+1688149+1689140(Top 34%)7352(Top 48%)7352(Top 358%)
20M20.00 mi1.36 mi9910+1928019+1308019+1308147(Top 31%)6673(Top 44%)6673(Top 325%)
21M21.00 mi1.00 mi9709+2017890+1297890+1296981(Top 26%)5840(Top 38%)5840(Top 285%)
35K21.75 mi0.75 mi9639+707830+607830+608356(Top 31%)6691(Top 44%)6691(Top 326%)
23M23.00 mi1.25 mi9512+1277728+1027728+1028103(Top 30%)6452(Top 43%)6452(Top 314%)
24M24.00 mi1.00 mi9434+787649+797649+798338(Top 31%)6502(Top 43%)6502(Top 317%)
40K24.85 mi0.85 mi9339+957562+877562+877773(Top 29%)6089(Top 40%)6089(Top 297%)
25.2M25.20 mi0.35 mi9298+417530+327530+327644(Top 29%)5925(Top 39%)5925(Top 289%)
Finish26.22 mi1.02 mi9179+1197439+917439+916573(Top 25%)5284(Top 35%)5284(Top 258%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

10578

Males

8435

M50-54

8435

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

10842

Males

8597

M50-54

8597

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

10578

Males

8435

M50-54

8435

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

9872

Males

7996

M50-54

7996

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

9917

Males

8031

M50-54

8031

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

9759

Males

7846

M50-54

7846

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9140

Males

7352

M50-54

7352

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8147

Males

6673

M50-54

6673

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

6981

Males

5840

M50-54

5840

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8356

Males

6691

M50-54

6691

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

8103

Males

6452

M50-54

6452

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8338

Males

6502

M50-54

6502

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7773

Males

6089

M50-54

6089

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7644

Males

5925

M50-54

5925

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6573

Males

5284

M50-54

5284

Passing Analysis

Category:
Athletes Passed
2727*
Passed By
593
Net Change
+2134
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11313
5K → 10K464184+280#11313#11033
10K → 15K288109+179#11033#10854
15K → 20K32655+271#10854#10583
20K → Half639+54#10583#10529
Half → 25K22451+173#10529#10356
25K → 30K300*46+254#10356#10102
30K → 20M204*12+192#10102#9910
20M → 21M2087+201#9910#9709
21M → 35K788+70#9709#9639
35K → 23M15932+127#9639#9512
23M → 24M11133+78#9512#9434
24M → 40K11924+95#9434#9339
40K → 25.2M476+41#9339#9298
25.2M → Finish13617+119#9298#9179
TOTALS2727*593+2134

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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