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BOSTON MARATHON 2023

Nick Chung

Bib: 4235•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 24%
Division (M18-39)
#0 / 5285
Top 48%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:07
Rank: #4640
Start → 5K
21:07 | 6:48/mi
10K· 6.21 mi
41:44
Rank: #4148 (+492)
5K → 10K
20:37 | 6:38/mi
15K· 9.32 mi
1:02:35
Rank: #4155 (-7)
10K → 15K
20:51 | 6:43/mi
20K· 12.43 mi
1:23:43
Rank: #4218 (-63)
15K → 20K
21:08 | 6:48/mi
Half· 13.11 mi
1:28:18
Rank: #4224 (-6)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:44:52
Rank: #4223 (+1)
Half → 25K
16:34 | 6:50/mi
30K· 18.64 mi
2:06:54
Rank: #4366 (-143)
25K → 30K
22:02 | 7:06/mi
20M
2:16:34
Rank: #4398 (-32)
30K → 20M
9:40 | 7:07/mi
21M
2:23:57
Rank: #4356 (+42)
20M → 21M
7:23 | 7:23/mi
35K· 21.75 mi
2:29:01
Rank: #4327 (+29)
21M → 35K
5:04 | 6:46/mi
23M
2:37:42
Rank: #4230 (+97)
35K → 23M
8:41 | 6:56/mi
24M
2:44:17
Rank: #4124 (+106)
23M → 24M
6:35 | 6:35/mi
40K· 24.85 mi
2:49:58
Rank: #4011 (+113)
24M → 40K
5:41 | 6:39/mi
25.2M
2:52:23
Rank: #3946 (+65)
40K → 25.2M
2:25 | 7:00/mi
Finish· 26.22 mi
2:58:53
Rank: #3811 (+135)
25.2M → Finish
6:30 | 6:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:18
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:30:35
Pace6:55 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0121:076:4821:07
6:48
-
10K
6.21 mi10:43:3841:446:4320:37
6:38
-0:10
15K
9.32 mi11:04:291:02:356:4320:51
6:43
+0:05
20K
12.43 mi11:25:371:23:436:4421:08
6:48
+0:05
Half
13.11 mi11:30:121:28:186:444:35
6:43
-0:05
25K
15.53 mi11:46:461:44:526:4516:34
6:50
+0:07
30K
18.64 mi12:08:482:06:546:4822:02
7:06
+0:16
20M
20.00 mi12:18:282:16:346:509:40
7:07
+0:01
21M
21.00 mi12:25:512:23:576:517:23
7:23
+0:16
35K
21.75 mi12:30:552:29:016:515:04
6:46
-0:37
23M
23.00 mi12:39:362:37:426:518:41
6:56
+0:10
24M
24.00 mi12:46:112:44:176:516:35
6:35
-0:21
40K
24.85 mi12:51:522:49:586:505:41
6:39
+0:04
25.2M
25.20 mi12:54:172:52:236:502:25
7:00
+0:21
Finish
26.22 mi13:00:472:58:536:506:30
6:23
-0:37

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

6:23 /mi

Average Pace

6:50 /mi

Slowest Pace

7:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19:48

78% of race

Time at Steady Pace

39:05

22% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:49 /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 mi10:23:0121:076:4821:07
6:48
#4640
10K
6.21 mi10:43:3841:446:4320:37
6:38
#4148
15K
9.32 mi11:04:291:02:356:4320:51
6:43
#4155
20K
12.43 mi11:25:371:23:436:4421:08
6:48
#4218
Half
13.11 mi11:30:121:28:186:444:35
6:43
#4224
25K
15.53 mi11:46:461:44:526:4516:34
6:50
#4223
30K
18.64 mi12:08:482:06:546:4822:02
7:06
#4366
20M
20.00 mi12:18:282:16:346:509:40
7:07
#4398
21M
21.00 mi12:25:512:23:576:517:23
7:23
#4356
35K
21.75 mi12:30:552:29:016:515:04
6:46
#4327
23M
23.00 mi12:39:362:37:426:518:41
6:56
#4230
24M
24.00 mi12:46:112:44:176:516:35
6:35
#4124
40K
24.85 mi12:51:522:49:586:505:41
6:39
#4011
25.2M
25.20 mi12:54:172:52:236:502:25
7:00
#3946
Finish
26.22 mi13:00:472:58:536:506:30
6:23
#3811
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4640432343234230(Top 16%)3967(Top 26%)3967(Top 75%)
10K6.21 mi3.10 mi4148+4923894+4293894+4293766(Top 14%)3553(Top 23%)3553(Top 67%)
15K9.32 mi3.11 mi4155-73901-73901-74230(Top 16%)3967(Top 26%)3967(Top 75%)
20K12.43 mi3.11 mi4218-633954-533954-534440(Top 17%)4141(Top 27%)4141(Top 78%)
Half13.11 mi0.68 mi4224-63959-53959-54465(Top 17%)4157(Top 27%)4157(Top 79%)
25K15.53 mi2.42 mi4223+13960-13960-14414(Top 17%)4112(Top 27%)4112(Top 78%)
30K18.64 mi3.11 mi4366-1434083-1234083-1234863(Top 18%)4475(Top 29%)4475(Top 85%)
20M20.00 mi1.36 mi4398-324106-234106-234663(Top 18%)4268(Top 28%)4268(Top 81%)
21M21.00 mi1.00 mi4356+424070+364070+364051(Top 15%)3729(Top 25%)3729(Top 71%)
35K21.75 mi0.75 mi4327+294041+294041+293995(Top 15%)3670(Top 24%)3670(Top 69%)
23M23.00 mi1.25 mi4230+973959+823959+823436(Top 13%)3184(Top 21%)3184(Top 60%)
24M24.00 mi1.00 mi4124+1063861+983861+982500(Top 9%)2336(Top 15%)2336(Top 44%)
40K24.85 mi0.85 mi4011+1133754+1073754+1072124(Top 8%)1988(Top 13%)1988(Top 38%)
25.2M25.20 mi0.35 mi3946+653694+603694+601811(Top 7%)1704(Top 11%)1704(Top 32%)
Finish26.22 mi1.02 mi3811+1353578+1163578+1161946(Top 7%)1817(Top 12%)1817(Top 34%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4230

Males

3967

M18-39

3967

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3766

Males

3553

M18-39

3553

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4230

Males

3967

M18-39

3967

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4440

Males

4141

M18-39

4141

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4465

Males

4157

M18-39

4157

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4414

Males

4112

M18-39

4112

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4863

Males

4475

M18-39

4475

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

4663

Males

4268

M18-39

4268

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4051

Males

3729

M18-39

3729

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

3995

Males

3670

M18-39

3670

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3436

Males

3184

M18-39

3184

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2500

Males

2336

M18-39

2336

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2124

Males

1988

M18-39

1988

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1811

Males

1704

M18-39

1704

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1946

Males

1817

M18-39

1817

Passing Analysis

Category:
Athletes Passed
1670
Passed By
841
Net Change
+829
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4640
5K → 10K54048+492#4640#4148
10K → 15K124131-7#4148#4155
15K → 20K73136-63#4155#4218
20K → Half1824-6#4218#4224
Half → 25K8988+1#4224#4223
25K → 30K74217-143#4223#4366
30K → 20M5486-32#4366#4398
20M → 21M8139+42#4398#4356
21M → 35K5425+29#4356#4327
35K → 23M11821+97#4327#4230
23M → 24M11610+106#4230#4124
24M → 40K1229+113#4124#4011
40K → 25.2M661+65#4011#3946
25.2M → Finish1416+135#3946#3811
TOTALS1670841+829
📊

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