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BOSTON MARATHON 2023

Jimmy Kwong

Bib: 12708•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 31%
Gender (Male)
#0 / 15176
Top 45%
Masters (Masters Men)
#0 / 9891
Top 33%
Division (M45-49)
#0 / 2252
Top 45%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:37
Rank: #10536
Start → 5K
23:37 | 7:36/mi
10K· 6.21 mi
46:38
Rank: #10063 (+473)
5K → 10K
23:01 | 7:25/mi
15K· 9.32 mi
1:09:23
Rank: #9561 (+502)
10K → 15K
22:45 | 7:19/mi
20K· 12.43 mi
1:32:23
Rank: #9273 (+288)
15K → 20K
23:00 | 7:24/mi
Half· 13.11 mi
1:37:17
Rank: #9176 (+97)
20K → Half
4:54 | 7:11/mi
25K· 15.53 mi
1:55:18
Rank: #8998 (+178)
Half → 25K
18:01 | 7:26/mi
30K· 18.64 mi
2:18:41
Rank: #8675 (+323)
25K → 30K
23:23 | 7:32/mi
20M
2:29:05
Rank: #8588 (+87)
30K → 20M
10:24 | 7:39/mi
21M
2:37:10
Rank: #8530 (+58)
20M → 21M
8:05 | 8:05/mi
35K· 21.75 mi
2:42:47
Rank: #8521 (+9)
21M → 35K
5:37 | 7:30/mi
23M
2:52:29
Rank: #8466 (+55)
35K → 23M
9:42 | 7:45/mi
24M
3:00:01
Rank: #8404 (+62)
23M → 24M
7:32 | 7:32/mi
40K· 24.85 mi
3:06:25
Rank: #8304 (+100)
24M → 40K
6:24 | 7:29/mi
25.2M
3:09:20
Rank: #8306 (-2)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:16:53
Rank: #8261 (+45)
25.2M → Finish
7:33 | 7:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:17
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:39:36
Pace7:36 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:2523:377:3623:37
7:36
-
10K
6.21 mi11:14:2646:387:3023:01
7:25
-0:11
15K
9.32 mi11:37:111:09:237:2722:45
7:19
-0:06
20K
12.43 mi12:00:111:32:237:2623:00
7:24
+0:05
Half
13.11 mi12:05:051:37:177:254:54
7:11
-0:13
25K
15.53 mi12:23:061:55:187:2518:01
7:26
+0:15
30K
18.64 mi12:46:292:18:417:2623:23
7:32
+0:06
20M
20.00 mi12:56:532:29:057:2710:24
7:39
+0:07
21M
21.00 mi13:04:582:37:107:298:05
8:05
+0:26
35K
21.75 mi13:10:352:42:477:295:37
7:30
-0:35
23M
23.00 mi13:20:172:52:297:309:42
7:45
+0:15
24M
24.00 mi13:27:493:00:017:307:32
7:32
-0:13
40K
24.85 mi13:34:133:06:257:306:24
7:29
-0:03
25.2M
25.20 mi13:37:083:09:207:312:55
8:27
+0:58
Finish
26.22 mi13:44:413:16:537:317:33
7:25
-1:02

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

7:11 /mi

Average Pace

7:31 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:53

94% of race

Time at Steady Pace

11:00

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:31 /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 mi10:51:2523:377:3623:37
7:36
#10536
10K
6.21 mi11:14:2646:387:3023:01
7:25
#10063
15K
9.32 mi11:37:111:09:237:2722:45
7:19
#9561
20K
12.43 mi12:00:111:32:237:2623:00
7:24
#9273
Half
13.11 mi12:05:051:37:177:254:54
7:11
#9176
25K
15.53 mi12:23:061:55:187:2518:01
7:26
#8998
30K
18.64 mi12:46:292:18:417:2623:23
7:32
#8675
20M
20.00 mi12:56:532:29:057:2710:24
7:39
#8588
21M
21.00 mi13:04:582:37:107:298:05
8:05
#8530
35K
21.75 mi13:10:352:42:477:295:37
7:30
#8521
23M
23.00 mi13:20:172:52:297:309:42
7:45
#8466
24M
24.00 mi13:27:493:00:017:307:32
7:32
#8404
40K
24.85 mi13:34:133:06:257:306:24
7:29
#8304
25.2M
25.20 mi13:37:083:09:207:312:55
8:27
#8306
Finish
26.22 mi13:44:413:16:537:317:33
7:25
#8261
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi10536841884188733(Top 33%)7382(Top 49%)7382(Top 328%)
10K6.21 mi3.10 mi10063+4738179+2398179+2399679(Top 36%)7975(Top 53%)7975(Top 354%)
15K9.32 mi3.11 mi9561+5027906+2737906+2738733(Top 33%)7382(Top 49%)7382(Top 328%)
20K12.43 mi3.11 mi9273+2887711+1957711+1958529(Top 32%)7213(Top 48%)7213(Top 320%)
Half13.11 mi0.68 mi9176+977657+547657+547716(Top 29%)6723(Top 44%)6723(Top 299%)
25K15.53 mi2.42 mi8998+1787543+1147543+1148241(Top 31%)6964(Top 46%)6964(Top 309%)
30K18.64 mi3.11 mi8675+3237299+2447299+2447402(Top 28%)6329(Top 42%)6329(Top 281%)
20M20.00 mi1.36 mi8588+877227+727227+727828(Top 29%)6488(Top 43%)6488(Top 288%)
21M21.00 mi1.00 mi8530+587170+577170+577877(Top 30%)6407(Top 42%)6407(Top 285%)
35K21.75 mi0.75 mi8521+97151+197151+198562(Top 32%)6836(Top 45%)6836(Top 304%)
23M23.00 mi1.25 mi8466+557099+527099+528029(Top 30%)6428(Top 42%)6428(Top 285%)
24M24.00 mi1.00 mi8404+627039+607039+607917(Top 30%)6265(Top 41%)6265(Top 278%)
40K24.85 mi0.85 mi8304+1006957+826957+826627(Top 25%)5415(Top 36%)5415(Top 240%)
25.2M25.20 mi0.35 mi8306-26949+86949+89173(Top 34%)6833(Top 45%)6833(Top 303%)
Finish26.22 mi1.02 mi8261+456897+526897+527841(Top 29%)6076(Top 40%)6076(Top 270%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

8733

Males

7382

M45-49

7382

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

9679

Males

7975

M45-49

7975

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

8733

Males

7382

M45-49

7382

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

8529

Males

7213

M45-49

7213

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

7716

Males

6723

M45-49

6723

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8241

Males

6964

M45-49

6964

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7402

Males

6329

M45-49

6329

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

7828

Males

6488

M45-49

6488

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

7877

Males

6407

M45-49

6407

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

8562

Males

6836

M45-49

6836

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

8029

Males

6428

M45-49

6428

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

7917

Males

6265

M45-49

6265

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6627

Males

5415

M45-49

5415

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9173

Males

6833

M45-49

6833

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

7841

Males

6076

M45-49

6076

Passing Analysis

Category:
Athletes Passed
2788*
Passed By
513
Net Change
+2275
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10536
5K → 10K593*120+473#10536#10063
10K → 15K531*29+502#10063#9561
15K → 20K31931+288#9561#9273
20K → Half970+97#9273#9176
Half → 25K20628+178#9176#8998
25K → 30K35431+323#8998#8675
30K → 20M12134+87#8675#8588
20M → 21M10345+58#8588#8530
21M → 35K4132+9#8530#8521
35K → 23M10752+55#8521#8466
23M → 24M9735+62#8466#8404
24M → 40K1066+100#8404#8304
40K → 25.2M2729-2#8304#8306
25.2M → Finish8641+45#8306#8261
TOTALS2788*513+2275

* 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