Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Kwan Chun Chiu

Bib: 8526 β€’M β€’Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 21%
Gender (Male)
#0 / 16340
Top 33%
Masters (Masters Men)
#0 / 10617
Top 18%
Age Group (M40-44)
#0 / 2198
Top 45%
Race Day Weather
51Β°/41Β°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
21:06
3.11 mi
Rank: #6774
Start β†’ 5K
21:06 | 6:48/mi
10K
42:13
6.21 mi
Rank: #6818 (-44)
5K β†’ 10K
21:07 | 6:48/mi
15K
1:03:30
9.32 mi
Rank: #6955 (-137)
10K β†’ 15K
21:17 | 6:52/mi
20K
1:24:52
12.43 mi
Rank: #6916 (+39)
15K β†’ 20K
21:22 | 6:53/mi
HALF
1:29:32
13.11 mi
Rank: #6966 (-50)
20K β†’ HALF
4:40 | 6:51/mi
25K
1:46:16
15.53 mi
Rank: #6887 (+79)
HALF β†’ 25K
16:44 | 6:54/mi
30K
2:08:19
18.64 mi
Rank: #6809 (+78)
25K β†’ 30K
22:03 | 7:06/mi
20M
2:17:55
20.00 mi
Rank: #6709 (+100)
30K β†’ 20M
9:36 | 7:05/mi
21M
2:25:11
21.00 mi
Rank: #6592 (+117)
20M β†’ 21M
7:16 | 7:16/mi
35K
2:30:06
21.75 mi
Rank: #6469 (+123)
21M β†’ 35K
4:55 | 6:35/mi
23M
2:38:33
23.00 mi
Rank: #6287 (+182)
35K β†’ 23M
8:27 | 6:46/mi
24M
2:45:11
24.00 mi
Rank: #6158 (+129)
23M β†’ 24M
6:38 | 6:38/mi
40K
2:50:56
24.85 mi
Rank: #6012 (+146)
24M β†’ 40K
5:45 | 6:44/mi
25.2M
2:53:31
25.20 mi
Rank: #5984 (+28)
40K β†’ 25.2M
2:35 | 7:30/mi
FINISH
3:00:30
26.22 mi
Rank: #5981 (+3)
25.2M β†’ FINISH
6:59 | 6:52/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:29:32
Pace6:50 /mi
2nd Half
Distance13.11 mi
Time1:30:58
Pace6:57 /mi
πŸ“ŠPositive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:36:1421:066:4821:06
6:48
-
10K
6.21 mi10:57:2142:136:4821:07
6:48
0:00
15K
9.32 mi11:18:381:03:306:4921:17
6:52
+0:04
20K
12.43 mi11:40:001:24:526:5021:22
6:53
+0:01
HALF
13.11 mi11:44:401:29:326:504:40
6:51
-0:02
25K
15.53 mi12:01:241:46:166:5116:44
6:54
+0:03
30K
18.64 mi12:23:272:08:196:5422:03
7:06
+0:12
20M
20.00 mi12:33:032:17:556:549:36
7:05
-0:01
21M
21.00 mi12:40:192:25:116:557:16
7:16
+0:11
35K
21.75 mi12:45:142:30:066:554:55
6:35
-0:41
23M
23.00 mi12:53:412:38:336:548:27
6:46
+0:11
24M
24.00 mi13:00:192:45:116:536:38
6:38
-0:08
40K
24.85 mi13:06:042:50:566:535:45
6:44
+0:06
25.2M
25.20 mi13:08:392:53:316:542:35
7:30
+0:46
FINISH
26.22 mi13:15:383:00:306:546:59
6:52
-0:38

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace 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

6:35 /mi

Average Pace

6:53 /mi

Slowest Pace

7:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:50:39

95% of race

Time at Steady Pace

9:51

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:53 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:36:1421:066:4821:06
6:48
#6774
10K
6.21 mi10:57:2142:136:4821:07
6:48
#6818
15K
9.32 mi11:18:381:03:306:4921:17
6:52
#6955
20K
12.43 mi11:40:001:24:526:5021:22
6:53
#6916
HALF
13.11 mi11:44:401:29:326:504:40
6:51
#6966
25K
15.53 mi12:01:241:46:166:5116:44
6:54
#6887
30K
18.64 mi12:23:272:08:196:5422:03
7:06
#6809
20M
20.00 mi12:33:032:17:556:549:36
7:05
#6709
21M
21.00 mi12:40:192:25:116:557:16
7:16
#6592
35K
21.75 mi12:45:142:30:066:554:55
6:35
#6469
23M
23.00 mi12:53:412:38:336:548:27
6:46
#6287
24M
24.00 mi13:00:192:45:116:536:38
6:38
#6158
40K
24.85 mi13:06:042:50:566:535:45
6:44
#6012
25.2M
25.20 mi13:08:392:53:316:542:35
7:30
#5984
FINISH
26.22 mi13:15:383:00:306:546:59
6:52
#5981
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6774604760477318(Top 25%)6395(Top 39%)6395(Top 291%)
10K6.21 mi3.10 mi6818-446085-386085-386929(Top 24%)6147(Top 38%)6147(Top 280%)
15K9.32 mi3.11 mi6955-1376161-766161-767318(Top 25%)6395(Top 39%)6395(Top 291%)
20K12.43 mi3.11 mi6916+396123+386123+386882(Top 24%)6062(Top 37%)6062(Top 276%)
HALF13.11 mi0.68 mi6966-506161-386161-387428(Top 26%)6461(Top 40%)6461(Top 294%)
25K15.53 mi2.42 mi6887+796099+626099+626674(Top 23%)5867(Top 36%)5867(Top 267%)
30K18.64 mi3.11 mi6809+786030+696030+696635(Top 23%)5739(Top 35%)5739(Top 261%)
20M20.00 mi1.36 mi6709+1005937+935937+936013(Top 21%)5258(Top 32%)5258(Top 239%)
21M21.00 mi1.00 mi6592+1175844+935844+935069(Top 17%)4453(Top 27%)4453(Top 203%)
35K21.75 mi0.75 mi6469+1235749+955749+954080(Top 14%)3711(Top 23%)3711(Top 169%)
23M23.00 mi1.25 mi6287+1825597+1525597+1523805(Top 13%)3444(Top 21%)3444(Top 157%)
24M24.00 mi1.00 mi6158+1295487+1105487+1103982(Top 14%)3566(Top 22%)3566(Top 162%)
40K24.85 mi0.85 mi6012+1465369+1185369+1183770(Top 13%)3353(Top 21%)3353(Top 153%)
25.2M25.20 mi0.35 mi5984+285345+245345+245205(Top 18%)4370(Top 27%)4370(Top 199%)
FINISH26.22 mi1.02 mi5981+35330+155330+156466(Top 22%)5163(Top 32%)5163(Top 235%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
Γ—21
+97ft-345ft

Overall

7318

Males

6395

M40-44

6395

5K→10K

3.1 - 6.2 mi

Top 24%
Γ—5
+79ft-138ft

Overall

6929

Males

6147

M40-44

6147

10K→15K

6.2 - 9.3 mi

Top 25%
Γ—3
+67ft-78ft

Overall

7318

Males

6395

M40-44

6395

15K→20K

9.3 - 12.4 mi

Top 24%
Γ—5
+106ft-86ft

Overall

6882

Males

6062

M40-44

6062

20K→HALF

12.4 - 13.1 mi

Top 26%
Γ—2
+19ft-37ft

Overall

7428

Males

6461

M40-44

6461

HALF→25K

13.1 - 15.5 mi

Top 23%
Γ—4
+66ft-88ft

Overall

6674

Males

5867

M40-44

5867

25K→30K

15.5 - 18.6 mi

Top 23%
Γ—9
+181ft-148ft

Overall

6635

Males

5739

M40-44

5739

30K→20M

18.6 - 20.0 mi

Top 21%
Γ—5
+64ft-50ft

Overall

6013

Males

5258

M40-44

5258

20M→21M

20.0 - 21.0 mi

Top 17%
Γ—8
+106ft-24ft

Overall

5069

Males

4453

M40-44

4453

21M→35K

21.0 - 21.8 mi

Top 14%
Γ—7
+17ft-86ft

Overall

4080

Males

3711

M40-44

3711

35K→23M

21.8 - 23.0 mi

Top 13%
Γ—5
+23ft-63ft

Overall

3805

Males

3444

M40-44

3444

23M→24M

23.0 - 24.0 mi

Top 14%
Γ—6
+12ft-82ft

Overall

3982

Males

3566

M40-44

3566

24M→40K

24.0 - 24.9 mi

Top 13%
Γ—1
+6ft-20ft

Overall

3770

Males

3353

M40-44

3353

40K→25.2M

24.9 - 25.2 mi

Top 18%
Γ—1
+13ft-16ft

Overall

5205

Males

4370

M40-44

4370

25.2M→FINISH

25.2 - 26.2 mi

Top 22%
Γ—2
+22ft-21ft

Overall

6466

Males

5163

M40-44

5163

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1737
Passed By
893
Net Change
+793
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#6774
5K β†’ 10K185200-44#6774#6818
10K β†’ 15K85200-137#6818#6955
15K β†’ 20K171132+39#6955#6916
20K β†’ HALF1565-50#6916#6966
HALF β†’ 25K13960+79#6966#6887
25K β†’ 30K17597+78#6887#6809
30K β†’ 20M12727+100#6809#6709
20M β†’ 21M13316+117#6709#6592
21M β†’ 35K1285+123#6592#6469
35K β†’ 23M1853+182#6469#6287
23M β†’ 24M13910+129#6287#6158
24M β†’ 40K15610+146#6158#6012
40K β†’ 25.2M3810+28#6012#5984
25.2M β†’ FINISH6158+3#5984#5981
TOTALS1737893+793
πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Activity Data

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