Boston Marathon logo
BOSTON MARATHON 2024

Chi Keung Chan

Bib: 29067•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M45-49)
#0 / 2218
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:42
Rank: #21896
Start → 5K
9:34/mi
29:42 split
10K· 6.21 mi
1:00:42
Rank: #22239 (-343)
5K → 10K
9:59/mi
31:00 split
15K· 9.32 mi
1:31:42
Rank: #22096 (+143)
10K → 15K
9:59/mi
31:00 split
20K· 12.43 mi
2:02:56
Rank: #21717 (+379)
15K → 20K
10:03/mi
31:14 split
Half· 13.11 mi
2:09:39
Rank: #21686 (+31)
20K → Half
9:51/mi
6:43 split
25K· 15.53 mi
2:34:19
Rank: #21294 (+392)
Half → 25K
10:10/mi
24:40 split
30K· 18.64 mi
3:06:58
Rank: #20838 (+456)
25K → 30K
10:31/mi
32:39 split
20M
3:21:17
Rank: #20625 (+213)
30K → 20M
10:32/mi
14:19 split
21M
3:32:16
Rank: #20396 (+229)
20M → 21M
10:59/mi
10:59 split
35K· 21.75 mi
3:39:48
Rank: #20294 (+102)
21M → 35K
10:04/mi
7:32 split
23M
3:52:44
Rank: #20072 (+222)
35K → 23M
10:20/mi
12:56 split
24M
4:02:41
Rank: #19894 (+178)
23M → 24M
9:57/mi
9:57 split
40K· 24.85 mi
4:11:41
Rank: #19767 (+127)
24M → 40K
10:32/mi
9:00 split
25.2M
4:15:43
Rank: #19708 (+59)
40K → 25.2M
11:42/mi
4:02 split
Finish· 26.22 mi
4:25:10
Rank: #19562 (+146)
25.2M → Finish
9:16/mi
9:27 split

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:39
Pace9:53 /mi
2nd Half
Distance13.11 mi
Time2:15:31
Pace10:20 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:5929:429:3429:42
9:34
-
10K
6.21 mi12:26:591:00:429:4631:00
9:59
+0:25
15K
9.32 mi12:57:591:31:429:5031:00
9:59
0:00
20K
12.43 mi13:29:132:02:569:5431:14
10:03
+0:04
Half
13.11 mi13:35:562:09:399:536:43
9:51
-0:12
25K
15.53 mi14:00:362:34:199:5624:40
10:10
+0:19
30K
18.64 mi14:33:153:06:5810:0232:39
10:31
+0:21
20M
20.00 mi14:47:343:21:1710:0414:19
10:32
+0:01
21M
21.00 mi14:58:333:32:1610:0610:59
10:59
+0:27
35K
21.75 mi15:06:053:39:4810:067:32
10:04
-0:55
23M
23.00 mi15:19:013:52:4410:0712:56
10:20
+0:16
24M
24.00 mi15:28:584:02:4110:079:57
9:57
-0:23
40K
24.85 mi15:37:584:11:4110:089:00
10:32
+0:35
25.2M
25.20 mi15:42:004:15:4310:094:02
11:42
+1:10
Finish
26.22 mi15:51:274:25:1010:079:27
9:16
-2:26

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

9:16 /mi

Average Pace

10:07 /mi

Slowest Pace

11:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

39:09

15% of race

Time at Steady Pace

2:35:02

58% of race

Time at Slower Pace

1:10:59

27% of race

Average Pace: 10:07 /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 mi11:55:5929:429:3429:42
9:34
#21896
10K
6.21 mi12:26:591:00:429:4631:00
9:59
#22239
15K
9.32 mi12:57:591:31:429:5031:00
9:59
#22096
20K
12.43 mi13:29:132:02:569:5431:14
10:03
#21717
Half
13.11 mi13:35:562:09:399:536:43
9:51
#21686
25K
15.53 mi14:00:362:34:199:5624:40
10:10
#21294
30K
18.64 mi14:33:153:06:5810:0232:39
10:31
#20838
20M
20.00 mi14:47:343:21:1710:0414:19
10:32
#20625
21M
21.00 mi14:58:333:32:1610:0610:59
10:59
#20396
35K
21.75 mi15:06:053:39:4810:067:32
10:04
#20294
23M
23.00 mi15:19:013:52:4410:0712:56
10:20
#20072
24M
24.00 mi15:28:584:02:4110:079:57
9:57
#19894
40K
24.85 mi15:37:584:11:4110:089:00
10:32
#19767
25.2M
25.20 mi15:42:004:15:4310:094:02
11:42
#19708
Finish
26.22 mi15:51:274:25:1010:079:27
9:16
#19562
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi21896129881298821869(Top 86%)13017(Top 89%)13017(Top 587%)
10K6.21 mi3.10 mi22239-34313171-18313171-18322503(Top 88%)13275(Top 91%)13275(Top 599%)
15K9.32 mi3.11 mi22096+14313097+7413097+7421869(Top 86%)13017(Top 89%)13017(Top 587%)
20K12.43 mi3.11 mi21717+37912913+18412913+18420685(Top 81%)12462(Top 85%)12462(Top 562%)
Half13.11 mi0.68 mi21686+3112898+1512898+1521050(Top 82%)12571(Top 86%)12571(Top 567%)
25K15.53 mi2.42 mi21294+39212719+17912719+17919579(Top 77%)11849(Top 81%)11849(Top 534%)
30K18.64 mi3.11 mi20838+45612445+27412445+27418800(Top 74%)11294(Top 77%)11294(Top 509%)
20M20.00 mi1.36 mi20625+21312321+12412321+12418082(Top 71%)10799(Top 74%)10799(Top 487%)
21M21.00 mi1.00 mi20396+22912190+13112190+13116290(Top 64%)9784(Top 67%)9784(Top 441%)
35K21.75 mi0.75 mi20294+10212125+6512125+6517381(Top 68%)10311(Top 71%)10311(Top 465%)
23M23.00 mi1.25 mi20072+22211999+12611999+12616512(Top 65%)9821(Top 67%)9821(Top 443%)
24M24.00 mi1.00 mi19894+17811909+9011909+9016144(Top 63%)9595(Top 66%)9595(Top 433%)
40K24.85 mi0.85 mi19767+12711831+7811831+7816763(Top 66%)9830(Top 67%)9830(Top 443%)
25.2M25.20 mi0.35 mi19708+5911795+3611795+3616573(Top 65%)9727(Top 67%)9727(Top 439%)
Finish26.22 mi1.02 mi19562+14611700+9511700+9515466(Top 61%)9194(Top 63%)9194(Top 415%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

21869

Males

13017

M45-49

13017

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

22503

Males

13275

M45-49

13275

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

21869

Males

13017

M45-49

13017

15K→20K

9.3 - 12.4 mi

Top 81%
×5stories
+106ft-86ft

Overall

20685

Males

12462

M45-49

12462

20K→Half

12.4 - 13.1 mi

Top 82%
×2stories
+19ft-37ft

Overall

21050

Males

12571

M45-49

12571

Half→25K

13.1 - 15.5 mi

Top 77%
×4stories
+66ft-88ft

Overall

19579

Males

11849

M45-49

11849

25K→30K

15.5 - 18.6 mi

Top 74%
×9stories
+181ft-148ft

Overall

18800

Males

11294

M45-49

11294

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

18082

Males

10799

M45-49

10799

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

16290

Males

9784

M45-49

9784

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

17381

Males

10311

M45-49

10311

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

16512

Males

9821

M45-49

9821

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

16144

Males

9595

M45-49

9595

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

16763

Males

9830

M45-49

9830

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

16573

Males

9727

M45-49

9727

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

15466

Males

9194

M45-49

9194

Passing Analysis

Category:
Athletes Passed
3014
Passed By
680
Net Change
+2334
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21896
5K → 10K110453-343#21896#22239
10K → 15K252109+143#22239#22096
15K → 20K40324+379#22096#21717
20K → Half4716+31#21717#21686
Half → 25K3986+392#21686#21294
25K → 30K47923+456#21294#20838
30K → 20M2207+213#20838#20625
20M → 21M2345+229#20625#20396
21M → 35K1108+102#20396#20294
35K → 23M2253+222#20294#20072
23M → 24M1857+178#20072#19894
24M → 40K1314+127#19894#19767
40K → 25.2M656+59#19767#19708
25.2M → Finish1559+146#19708#19562
TOTALS3014680+2334
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing