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BOSTON MARATHON 2023

Joey Chiang

Bib: 4881•M

WA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 9%
Gender (Male)
#0 / 15176
Top 15%
Division (M18-39)
#0 / 5285
Top 34%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:11
Rank: #4824
Start → 5K
21:11 | 6:49/mi
10K· 6.21 mi
41:44
Rank: #4139 (+685)
5K → 10K
20:33 | 6:37/mi
15K· 9.32 mi
1:02:10
Rank: #3704 (+435)
10K → 15K
20:26 | 6:35/mi
20K· 12.43 mi
1:22:25
Rank: #3315 (+389)
15K → 20K
20:15 | 6:31/mi
Half· 13.11 mi
1:26:49
Rank: #3246 (+69)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:42:39
Rank: #3049 (+197)
Half → 25K
15:50 | 6:32/mi
30K· 18.64 mi
2:03:22
Rank: #2840 (+209)
25K → 30K
20:43 | 6:40/mi
20M
2:12:37
Rank: #2817 (+23)
30K → 20M
9:15 | 6:48/mi
21M
2:19:30
Rank: #2696 (+121)
20M → 21M
6:53 | 6:53/mi
35K· 21.75 mi
2:24:18
Rank: #2649 (+47)
21M → 35K
4:48 | 6:25/mi
23M
2:32:36
Rank: #2552 (+97)
35K → 23M
8:18 | 6:38/mi
24M
2:39:05
Rank: #2502 (+50)
23M → 24M
6:29 | 6:29/mi
40K· 24.85 mi
2:44:43
Rank: #2455 (+47)
24M → 40K
5:38 | 6:35/mi
25.2M
2:47:10
Rank: #2434 (+21)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:53:38
Rank: #2396 (+38)
25.2M → Finish
6:28 | 6:21/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:26:49
Pace6:37 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:26:49
Pace6:37 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0621:116:4921:11
6:49
-
10K
6.21 mi10:43:3941:446:4320:33
6:37
-0:12
15K
9.32 mi11:04:051:02:106:4020:26
6:35
-0:02
20K
12.43 mi11:24:201:22:256:3820:15
6:31
-0:04
Half
13.11 mi11:28:441:26:496:374:24
6:27
-0:04
25K
15.53 mi11:44:341:42:396:3615:50
6:32
+0:05
30K
18.64 mi12:05:172:03:226:3720:43
6:40
+0:08
20M
20.00 mi12:14:322:12:376:389:15
6:48
+0:08
21M
21.00 mi12:21:252:19:306:396:53
6:53
+0:05
35K
21.75 mi12:26:132:24:186:384:48
6:25
-0:28
23M
23.00 mi12:34:312:32:366:388:18
6:38
+0:13
24M
24.00 mi12:41:002:39:056:386:29
6:29
-0:09
40K
24.85 mi12:46:382:44:436:385:38
6:35
+0:06
25.2M
25.20 mi12:49:052:47:106:382:27
7:06
+0:31
Finish
26.22 mi12:55:332:53:386:386:28
6:21
-0:45

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

6:21 /mi

Average Pace

6:38 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:11

99% of race

Time at Steady Pace

2:27

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:37 /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 mi10:23:0621:116:4921:11
6:49
#4824
10K
6.21 mi10:43:3941:446:4320:33
6:37
#4139
15K
9.32 mi11:04:051:02:106:4020:26
6:35
#3704
20K
12.43 mi11:24:201:22:256:3820:15
6:31
#3315
Half
13.11 mi11:28:441:26:496:374:24
6:27
#3246
25K
15.53 mi11:44:341:42:396:3615:50
6:32
#3049
30K
18.64 mi12:05:172:03:226:3720:43
6:40
#2840
20M
20.00 mi12:14:322:12:376:389:15
6:48
#2817
21M
21.00 mi12:21:252:19:306:396:53
6:53
#2696
35K
21.75 mi12:26:132:24:186:384:48
6:25
#2649
23M
23.00 mi12:34:312:32:366:388:18
6:38
#2552
24M
24.00 mi12:41:002:39:056:386:29
6:29
#2502
40K
24.85 mi12:46:382:44:436:385:38
6:35
#2455
25.2M
25.20 mi12:49:052:47:106:382:27
7:06
#2434
Finish
26.22 mi12:55:332:53:386:386:28
6:21
#2396
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4824448344833093(Top 12%)2947(Top 19%)2947(Top 56%)
10K6.21 mi3.10 mi4139+6853885+5983885+5983583(Top 13%)3383(Top 22%)3383(Top 64%)
15K9.32 mi3.11 mi3704+4353498+3873498+3873093(Top 12%)2947(Top 19%)2947(Top 56%)
20K12.43 mi3.11 mi3315+3893151+3473151+3472384(Top 9%)2284(Top 15%)2284(Top 43%)
Half13.11 mi0.68 mi3246+693088+633088+632481(Top 9%)2380(Top 16%)2380(Top 45%)
25K15.53 mi2.42 mi3049+1972907+1812907+1812329(Top 9%)2231(Top 15%)2231(Top 42%)
30K18.64 mi3.11 mi2840+2092715+1922715+1922256(Top 8%)2151(Top 14%)2151(Top 41%)
20M20.00 mi1.36 mi2817+232693+222693+222834(Top 11%)2669(Top 18%)2669(Top 51%)
21M21.00 mi1.00 mi2696+1212576+1172576+1171721(Top 6%)1637(Top 11%)1637(Top 31%)
35K21.75 mi0.75 mi2649+472532+442532+442041(Top 8%)1939(Top 13%)1939(Top 37%)
23M23.00 mi1.25 mi2552+972440+922440+921896(Top 7%)1798(Top 12%)1798(Top 34%)
24M24.00 mi1.00 mi2502+502392+482392+482029(Top 8%)1904(Top 13%)1904(Top 36%)
40K24.85 mi0.85 mi2455+472346+462346+461877(Top 7%)1768(Top 12%)1768(Top 33%)
25.2M25.20 mi0.35 mi2434+212326+202326+202119(Top 8%)1975(Top 13%)1975(Top 37%)
Finish26.22 mi1.02 mi2396+382287+392287+391808(Top 7%)1692(Top 11%)1692(Top 32%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3093

Males

2947

M18-39

2947

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3583

Males

3383

M18-39

3383

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3093

Males

2947

M18-39

2947

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2384

Males

2284

M18-39

2284

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2481

Males

2380

M18-39

2380

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2329

Males

2231

M18-39

2231

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2256

Males

2151

M18-39

2151

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

2834

Males

2669

M18-39

2669

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1721

Males

1637

M18-39

1637

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2041

Males

1939

M18-39

1939

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1896

Males

1798

M18-39

1798

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2029

Males

1904

M18-39

1904

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1877

Males

1768

M18-39

1768

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2119

Males

1975

M18-39

1975

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1808

Males

1692

M18-39

1692

Passing Analysis

Category:
Athletes Passed
2563
Passed By
135
Net Change
+2428
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4824
5K → 10K71227+685#4824#4139
10K → 15K44712+435#4139#3704
15K → 20K3912+389#3704#3315
20K → Half723+69#3315#3246
Half → 25K2025+197#3246#3049
25K → 30K2167+209#3049#2840
30K → 20M4522+23#2840#2817
20M → 21M1254+121#2817#2696
21M → 35K514+47#2696#2649
35K → 23M10710+97#2649#2552
23M → 24M544+50#2552#2502
24M → 40K5710+47#2502#2455
40K → 25.2M254+21#2455#2434
25.2M → Finish5921+38#2434#2396
TOTALS2563135+2428
📊

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