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BOSTON MARATHON 2023

Nicholas Chan

Bib: 2991•M

NJ

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 7%
Division (M18-39)
#0 / 5285
Top 17%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:30
Rank: #1360
Start → 5K
6:17/mi
19:30 split
10K· 6.21 mi
38:32
Rank: #1206 (+154)
5K → 10K
6:08/mi
19:02 split
15K· 9.32 mi
57:26
Rank: #1107 (+99)
10K → 15K
6:05/mi
18:54 split
20K· 12.43 mi
1:16:28
Rank: #1043 (+64)
15K → 20K
6:08/mi
19:02 split
Half· 13.11 mi
1:20:33
Rank: #1024 (+19)
20K → Half
5:59/mi
4:05 split
25K· 15.53 mi
1:35:31
Rank: #993 (+31)
Half → 25K
6:10/mi
14:58 split
30K· 18.64 mi
1:55:14
Rank: #969 (+24)
25K → 30K
6:21/mi
19:43 split
20M
2:03:51
Rank: #957 (+12)
30K → 20M
6:20/mi
8:37 split
21M
2:10:31
Rank: #946 (+11)
20M → 21M
6:40/mi
6:40 split
35K· 21.75 mi
2:15:07
Rank: #945 (+1)
21M → 35K
6:09/mi
4:36 split
23M
2:23:22
Rank: #955 (-10)
35K → 23M
6:35/mi
8:15 split
24M
2:29:55
Rank: #978 (-23)
23M → 24M
6:33/mi
6:33 split
40K· 24.85 mi
2:35:49
Rank: #1024 (-46)
24M → 40K
6:54/mi
5:54 split
25.2M
2:38:23
Rank: #1055 (-31)
40K → 25.2M
7:27/mi
2:34 split
Finish· 26.22 mi
2:45:32
Rank: #1142 (-87)
25.2M → Finish
7:01/mi
7:09 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:33
Pace6:09 /mi
2nd Half
Distance13.11 mi
Time1:24:59
Pace6:29 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1119:306:1719:30
6:17
-
10K
6.21 mi10:39:1338:326:1219:02
6:08
-0:09
15K
9.32 mi10:58:0757:266:1018:54
6:05
-0:03
20K
12.43 mi11:17:091:16:286:0919:02
6:08
+0:03
Half
13.11 mi11:21:141:20:336:094:05
5:59
-0:09
25K
15.53 mi11:36:121:35:316:0914:58
6:10
+0:11
30K
18.64 mi11:55:551:55:146:1119:43
6:21
+0:11
20M
20.00 mi12:04:322:03:516:128:37
6:20
-0:01
21M
21.00 mi12:11:122:10:316:136:40
6:40
+0:20
35K
21.75 mi12:15:482:15:076:134:36
6:09
-0:31
23M
23.00 mi12:24:032:23:226:148:15
6:35
+0:26
24M
24.00 mi12:30:362:29:556:156:33
6:33
-0:02
40K
24.85 mi12:36:302:35:496:165:54
6:54
+0:21
25.2M
25.20 mi12:39:042:38:236:172:34
7:27
+0:33
Finish
26.22 mi12:46:132:45:326:197:09
7:01
-0:26

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

5:59 /mi

Average Pace

6:19 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:03

37% of race

Time at Steady Pace

1:07:24

41% of race

Time at Slower Pace

37:05

22% of race

Average Pace: 6:19 /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 mi10:20:1119:306:1719:30
6:17
#1360
10K
6.21 mi10:39:1338:326:1219:02
6:08
#1206
15K
9.32 mi10:58:0757:266:1018:54
6:05
#1107
20K
12.43 mi11:17:091:16:286:0919:02
6:08
#1043
Half
13.11 mi11:21:141:20:336:094:05
5:59
#1024
25K
15.53 mi11:36:121:35:316:0914:58
6:10
#993
30K
18.64 mi11:55:551:55:146:1119:43
6:21
#969
20M
20.00 mi12:04:322:03:516:128:37
6:20
#957
21M
21.00 mi12:11:122:10:316:136:40
6:40
#946
35K
21.75 mi12:15:482:15:076:134:36
6:09
#945
23M
23.00 mi12:24:032:23:226:148:15
6:35
#955
24M
24.00 mi12:30:362:29:556:156:33
6:33
#978
40K
24.85 mi12:36:302:35:496:165:54
6:54
#1024
25.2M
25.20 mi12:39:042:38:236:172:34
7:27
#1055
Finish
26.22 mi12:46:132:45:326:197:09
7:01
#1142
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi136012921292924(Top 3%)876(Top 6%)876(Top 17%)
10K6.21 mi3.10 mi1206+1541143+1491143+1491108(Top 4%)1051(Top 7%)1051(Top 20%)
15K9.32 mi3.11 mi1107+991049+941049+94924(Top 3%)876(Top 6%)876(Top 17%)
20K12.43 mi3.11 mi1043+64990+59990+59852(Top 3%)808(Top 5%)808(Top 15%)
Half13.11 mi0.68 mi1024+19972+18972+18739(Top 3%)698(Top 5%)698(Top 13%)
25K15.53 mi2.42 mi993+31943+29943+29928(Top 3%)881(Top 6%)881(Top 17%)
30K18.64 mi3.11 mi969+24920+23920+231049(Top 4%)998(Top 7%)998(Top 19%)
20M20.00 mi1.36 mi957+12908+12908+12973(Top 4%)930(Top 6%)930(Top 18%)
21M21.00 mi1.00 mi946+11899+9899+91011(Top 4%)963(Top 6%)963(Top 18%)
35K21.75 mi0.75 mi945+1898+1898+11078(Top 4%)1026(Top 7%)1026(Top 19%)
23M23.00 mi1.25 mi955-10908-10908-101721(Top 6%)1631(Top 11%)1631(Top 31%)
24M24.00 mi1.00 mi978-23929-21929-212278(Top 9%)2129(Top 14%)2129(Top 40%)
40K24.85 mi0.85 mi1024-46973-44973-443281(Top 12%)2997(Top 20%)2997(Top 57%)
25.2M25.20 mi0.35 mi1055-311003-301003-303527(Top 13%)3155(Top 21%)3155(Top 60%)
Finish26.22 mi1.02 mi1142-871088-851088-855260(Top 20%)4440(Top 29%)4440(Top 84%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21story building
+97ft-345ft

Overall

924

Males

876

M18-39

876

5K→10K

3.1 - 6.2 mi

Top 4%
×5story building
+79ft-138ft

Overall

1108

Males

1051

M18-39

1051

10K→15K

6.2 - 9.3 mi

Top 3%
×3story building
+67ft-78ft

Overall

924

Males

876

M18-39

876

15K→20K

9.3 - 12.4 mi

Top 3%
×5story building
+106ft-86ft

Overall

852

Males

808

M18-39

808

20K→Half

12.4 - 13.1 mi

Top 3%
×2story building
+19ft-37ft

Overall

739

Males

698

M18-39

698

Half→25K

13.1 - 15.5 mi

Top 3%
×4story building
+66ft-88ft

Overall

928

Males

881

M18-39

881

25K→30K

15.5 - 18.6 mi

Top 4%
×9story building
+181ft-148ft

Overall

1049

Males

998

M18-39

998

30K→20M

18.6 - 20.0 mi

Top 4%
×5story building
+64ft-50ft

Overall

973

Males

930

M18-39

930

20M→21M

20.0 - 21.0 mi

Top 4%
×8story building
+106ft-24ft

Overall

1011

Males

963

M18-39

963

21M→35K

21.0 - 21.8 mi

Top 4%
×7story building
+17ft-86ft

Overall

1078

Males

1026

M18-39

1026

35K→23M

21.8 - 23.0 mi

Top 6%
×5story building
+23ft-63ft

Overall

1721

Males

1631

M18-39

1631

23M→24M

23.0 - 24.0 mi

Top 9%
×6story building
+12ft-82ft

Overall

2278

Males

2129

M18-39

2129

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3281

Males

2997

M18-39

2997

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3527

Males

3155

M18-39

3155

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5260

Males

4440

M18-39

4440

Passing Analysis

Category:
Athletes Passed
524
Passed By
306
Net Change
+218
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1360
5K → 10K17117+154#1360#1206
10K → 15K1012+99#1206#1107
15K → 20K717+64#1107#1043
20K → Half201+19#1043#1024
Half → 25K376+31#1024#993
25K → 30K4521+24#993#969
30K → 20M2311+12#969#957
20M → 21M2211+11#957#946
21M → 35K76+1#946#945
35K → 23M1020-10#945#955
23M → 24M932-23#955#978
24M → 40K450-46#978#1024
40K → 25.2M233-31#1024#1055
25.2M → Finish289-87#1055#1142
TOTALS524306+218
📊

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