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BOSTON MARATHON 2023

Tsz Kin Michael Kwan

Bib: 5410•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 22%
Masters (Masters Men)
#0 / 9891
Top 10%
Division (M50-54)
#0 / 2052
Top 6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:01
Rank: #4297
Start → 5K
6:46/mi
21:01 split
10K· 6.21 mi
41:51
Rank: #4322 (-25)
5K → 10K
6:42/mi
20:50 split
15K· 9.32 mi
1:02:55
Rank: #4507 (-185)
10K → 15K
6:47/mi
21:04 split
20K· 12.43 mi
1:24:14
Rank: #4621 (-114)
15K → 20K
6:52/mi
21:19 split
Half· 13.11 mi
1:28:52
Rank: #4637 (-16)
20K → Half
6:47/mi
4:38 split
25K· 15.53 mi
1:45:40
Rank: #4717 (-80)
Half → 25K
6:56/mi
16:48 split
30K· 18.64 mi
2:07:43
Rank: #4763 (-46)
25K → 30K
7:06/mi
22:03 split
20M
2:17:14
Rank: #4685 (+78)
30K → 20M
7:00/mi
9:31 split
21M
2:24:37
Rank: #4626 (+59)
20M → 21M
7:23/mi
7:23 split
35K· 21.75 mi
2:29:29
Rank: #4522 (+104)
21M → 35K
6:30/mi
4:52 split
23M
2:37:52
Rank: #4298 (+224)
35K → 23M
6:42/mi
8:23 split
24M
2:44:08
Rank: #4076 (+222)
23M → 24M
6:16/mi
6:16 split
40K· 24.85 mi
2:49:37
Rank: #3880 (+196)
24M → 40K
6:25/mi
5:29 split
25.2M
2:52:01
Rank: #3807 (+73)
40K → 25.2M
6:58/mi
2:24 split
Finish· 26.22 mi
2:58:23
Rank: #3613 (+194)
25.2M → Finish
6:15/mi
6:22 split

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:28:52
Pace6:47 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:29:31
Pace6:50 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5021:016:4621:01
6:46
-
10K
6.21 mi10:44:4041:516:4420:50
6:42
-0:04
15K
9.32 mi11:05:441:02:556:4521:04
6:47
+0:05
20K
12.43 mi11:27:031:24:146:4721:19
6:52
+0:05
Half
13.11 mi11:31:411:28:526:474:38
6:47
-0:05
25K
15.53 mi11:48:291:45:406:4816:48
6:56
+0:09
30K
18.64 mi12:10:322:07:436:5122:03
7:06
+0:10
20M
20.00 mi12:20:032:17:146:529:31
7:00
-0:06
21M
21.00 mi12:27:262:24:376:537:23
7:23
+0:23
35K
21.75 mi12:32:182:29:296:524:52
6:30
-0:53
23M
23.00 mi12:40:412:37:526:528:23
6:42
+0:12
24M
24.00 mi12:46:572:44:086:506:16
6:16
-0:26
40K
24.85 mi12:52:262:49:376:495:29
6:25
+0:09
25.2M
25.20 mi12:54:502:52:016:502:24
6:58
+0:33
Finish
26.22 mi13:01:122:58:236:496:22
6:15
-0:43

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

6:15 /mi

Average Pace

6:49 /mi

Slowest Pace

7:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:14

67% of race

Time at Steady Pace

50:46

28% of race

Time at Slower Pace

7:23

4% of race

Average Pace: 6:48 /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 mi10:23:5021:016:4621:01
6:46
#4297
10K
6.21 mi10:44:4041:516:4420:50
6:42
#4322
15K
9.32 mi11:05:441:02:556:4521:04
6:47
#4507
20K
12.43 mi11:27:031:24:146:4721:19
6:52
#4621
Half
13.11 mi11:31:411:28:526:474:38
6:47
#4637
25K
15.53 mi11:48:291:45:406:4816:48
6:56
#4717
30K
18.64 mi12:10:322:07:436:5122:03
7:06
#4763
20M
20.00 mi12:20:032:17:146:529:31
7:00
#4685
21M
21.00 mi12:27:262:24:376:537:23
7:23
#4626
35K
21.75 mi12:32:182:29:296:524:52
6:30
#4522
23M
23.00 mi12:40:412:37:526:528:23
6:42
#4298
24M
24.00 mi12:46:572:44:086:506:16
6:16
#4076
40K
24.85 mi12:52:262:49:376:495:29
6:25
#3880
25.2M
25.20 mi12:54:502:52:016:502:24
6:58
#3807
Finish
26.22 mi13:01:122:58:236:496:22
6:15
#3613
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi4297401540154913(Top 18%)4564(Top 30%)4564(Top 222%)
10K6.21 mi3.10 mi4322-254051-364051-364370(Top 16%)4089(Top 27%)4089(Top 199%)
15K9.32 mi3.11 mi4507-1854211-1604211-1604913(Top 18%)4564(Top 30%)4564(Top 222%)
20K12.43 mi3.11 mi4621-1144310-994310-994991(Top 19%)4624(Top 30%)4624(Top 225%)
Half13.11 mi0.68 mi4637-164325-154325-155100(Top 19%)4710(Top 31%)4710(Top 230%)
25K15.53 mi2.42 mi4717-804394-694394-695127(Top 19%)4730(Top 31%)4730(Top 231%)
30K18.64 mi3.11 mi4763-464435-414435-414907(Top 18%)4515(Top 30%)4515(Top 220%)
20M20.00 mi1.36 mi4685+784368+674368+674031(Top 15%)3731(Top 25%)3731(Top 182%)
21M21.00 mi1.00 mi4626+594307+614307+614044(Top 15%)3722(Top 25%)3722(Top 181%)
35K21.75 mi0.75 mi4522+1044217+904217+902473(Top 9%)2345(Top 15%)2345(Top 114%)
23M23.00 mi1.25 mi4298+2244021+1964021+1962183(Top 8%)2063(Top 14%)2063(Top 101%)
24M24.00 mi1.00 mi4076+2223817+2043817+2041280(Top 5%)1214(Top 8%)1214(Top 59%)
40K24.85 mi0.85 mi3880+1963641+1763641+1761272(Top 5%)1200(Top 8%)1200(Top 58%)
25.2M25.20 mi0.35 mi3807+733578+633578+631667(Top 6%)1573(Top 10%)1573(Top 77%)
Finish26.22 mi1.02 mi3613+1943399+1793399+1791449(Top 5%)1372(Top 9%)1372(Top 67%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21story building
+97ft-345ft

Overall

4913

Males

4564

M50-54

4564

5K→10K

3.1 - 6.2 mi

Top 16%
×5story building
+79ft-138ft

Overall

4370

Males

4089

M50-54

4089

10K→15K

6.2 - 9.3 mi

Top 18%
×3story building
+67ft-78ft

Overall

4913

Males

4564

M50-54

4564

15K→20K

9.3 - 12.4 mi

Top 19%
×5story building
+106ft-86ft

Overall

4991

Males

4624

M50-54

4624

20K→Half

12.4 - 13.1 mi

Top 19%
×2story building
+19ft-37ft

Overall

5100

Males

4710

M50-54

4710

Half→25K

13.1 - 15.5 mi

Top 19%
×4story building
+66ft-88ft

Overall

5127

Males

4730

M50-54

4730

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

4907

Males

4515

M50-54

4515

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

4031

Males

3731

M50-54

3731

20M→21M

20.0 - 21.0 mi

Top 15%
×8story building
+106ft-24ft

Overall

4044

Males

3722

M50-54

3722

21M→35K

21.0 - 21.8 mi

Top 9%
×7story building
+17ft-86ft

Overall

2473

Males

2345

M50-54

2345

35K→23M

21.8 - 23.0 mi

Top 8%
×5story building
+23ft-63ft

Overall

2183

Males

2063

M50-54

2063

23M→24M

23.0 - 24.0 mi

Top 5%
×6story building
+12ft-82ft

Overall

1280

Males

1214

M50-54

1214

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1272

Males

1200

M50-54

1200

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1667

Males

1573

M50-54

1573

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2story building
+22ft-21ft

Overall

1449

Males

1372

M50-54

1372

Passing Analysis

Category:
Athletes Passed
1764
Passed By
1080
Net Change
+684
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4297
5K → 10K201226-25#4297#4322
10K → 15K73258-185#4322#4507
15K → 20K65179-114#4507#4621
20K → Half1127-16#4621#4637
Half → 25K84164-80#4637#4717
25K → 30K116162-46#4717#4763
30K → 20M10224+78#4763#4685
20M → 21M8526+59#4685#4626
21M → 35K1062+104#4626#4522
35K → 23M2317+224#4522#4298
23M → 24M2220+222#4298#4076
24M → 40K1971+196#4076#3880
40K → 25.2M752+73#3880#3807
25.2M → Finish1962+194#3807#3613
TOTALS17641080+684
📊

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