Boston Marathon logo
BOSTON MARATHON 2024

Chi Fai Cheung

Bib: 6418•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Top 46%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 47%
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
20:32
Rank: #4096
Start → 5K
20:32 | 6:37/mi
10K· 6.21 mi
41:16
Rank: #4089 (+7)
5K → 10K
20:44 | 6:40/mi
15K· 9.32 mi
1:02:15
Rank: #4134 (-45)
10K → 15K
20:59 | 6:45/mi
20K· 12.43 mi
1:23:42
Rank: #4232 (-98)
15K → 20K
21:27 | 6:54/mi
Half· 13.11 mi
1:28:19
Rank: #4217 (+15)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:47:46
Rank: #5333 (-1116)
Half → 25K
19:27 | 8:01/mi
30K· 18.64 mi
2:16:56
Rank: #7113 (-1780)
25K → 30K
29:10 | 9:23/mi
20M
2:29:35
Rank: #7586 (-473)
30K → 20M
12:39 | 9:19/mi
21M
2:40:03
Rank: #8044 (-458)
20M → 21M
10:28 | 10:28/mi
35K· 21.75 mi
2:47:21
Rank: #8392 (-348)
21M → 35K
7:18 | 9:45/mi
23M
3:02:09
Rank: #9549 (-1157)
35K → 23M
14:48 | 11:49/mi
24M
3:13:17
Rank: #10261 (-712)
23M → 24M
11:08 | 11:08/mi
40K· 24.85 mi
3:23:25
Rank: #10897 (-636)
24M → 40K
10:08 | 11:51/mi
25.2M
3:26:53
Rank: #10893 (+4)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:38:37
Rank: #11643 (-750)
25.2M → Finish
11:44 | 11:31/mi

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
Time1:28:19
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time2:10:18
Pace9:56 /mi
📊Positive Split: 47.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:3920:326:3720:32
6:37
-
10K
6.21 mi10:46:2341:166:3820:44
6:40
+0:03
15K
9.32 mi11:07:221:02:156:4120:59
6:45
+0:05
20K
12.43 mi11:28:491:23:426:4421:27
6:54
+0:09
Half
13.11 mi11:33:261:28:196:444:37
6:46
-0:08
25K
15.53 mi11:52:531:47:466:5619:27
8:01
+1:15
30K
18.64 mi12:22:032:16:567:2129:10
9:23
+1:22
20M
20.00 mi12:34:422:29:357:2912:39
9:19
-0:04
21M
21.00 mi12:45:102:40:037:3710:28
10:28
+1:09
35K
21.75 mi12:52:282:47:217:427:18
9:45
-0:43
23M
23.00 mi13:07:163:02:097:5514:48
11:49
+2:04
24M
24.00 mi13:18:243:13:178:0311:08
11:08
-0:41
40K
24.85 mi13:28:323:23:258:1110:08
11:51
+0:43
25.2M
25.20 mi13:32:003:26:538:133:28
10:03
-1:48
Finish
26.22 mi13:43:443:38:378:2111:44
11:31
+1:28

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

6:37 /mi

Average Pace

8:21 /mi

Slowest Pace

11:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:46

49% of race

Time at Steady Pace

52:35

24% of race

Time at Slower Pace

58:16

27% of race

Average Pace: 8:20 /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 mi10:25:3920:326:3720:32
6:37
#4096
10K
6.21 mi10:46:2341:166:3820:44
6:40
#4089
15K
9.32 mi11:07:221:02:156:4120:59
6:45
#4134
20K
12.43 mi11:28:491:23:426:4421:27
6:54
#4232
Half
13.11 mi11:33:261:28:196:444:37
6:46
#4217
25K
15.53 mi11:52:531:47:466:5619:27
8:01
#5333
30K
18.64 mi12:22:032:16:567:2129:10
9:23
#7113
20M
20.00 mi12:34:422:29:357:2912:39
9:19
#7586
21M
21.00 mi12:45:102:40:037:3710:28
10:28
#8044
35K
21.75 mi12:52:282:47:217:427:18
9:45
#8392
23M
23.00 mi13:07:163:02:097:5514:48
11:49
#9549
24M
24.00 mi13:18:243:13:178:0311:08
11:08
#10261
40K
24.85 mi13:28:323:23:258:1110:08
11:51
#10897
25.2M
25.20 mi13:32:003:26:538:133:28
10:03
#10893
Finish
26.22 mi13:43:443:38:378:2111:44
11:31
#11643
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4096387038704341(Top 17%)4058(Top 28%)4058(Top 183%)
10K6.21 mi3.10 mi4089+73856+143856+144126(Top 16%)3875(Top 27%)3875(Top 175%)
15K9.32 mi3.11 mi4134-453885-293885-294341(Top 17%)4058(Top 28%)4058(Top 183%)
20K12.43 mi3.11 mi4232-983965-803965-804672(Top 18%)4299(Top 29%)4299(Top 194%)
Half13.11 mi0.68 mi4217+153955+103955+104321(Top 17%)4025(Top 28%)4025(Top 181%)
25K15.53 mi2.42 mi5333-11164862-9074862-90710321(Top 40%)7647(Top 52%)7647(Top 345%)
30K18.64 mi3.11 mi7113-17806073-12116073-121114984(Top 59%)9544(Top 65%)9544(Top 430%)
20M20.00 mi1.36 mi7586-4736315-2426315-24213639(Top 53%)8677(Top 60%)8677(Top 391%)
21M21.00 mi1.00 mi8044-4586519-2046519-20414701(Top 58%)8992(Top 62%)8992(Top 405%)
35K21.75 mi0.75 mi8392-3486685-1666685-16616373(Top 64%)9784(Top 67%)9784(Top 441%)
23M23.00 mi1.25 mi9549-11577224-5397224-53920333(Top 80%)11725(Top 80%)11725(Top 529%)
24M24.00 mi1.00 mi10261-7127529-3057529-30519564(Top 77%)11285(Top 77%)11285(Top 509%)
40K24.85 mi0.85 mi10897-6367800-2717800-27120131(Top 79%)11492(Top 79%)11492(Top 518%)
25.2M25.20 mi0.35 mi10893+47769+317769+3111125(Top 44%)6950(Top 48%)6950(Top 313%)
Finish26.22 mi1.02 mi11643-7508083-3148083-31422438(Top 88%)12729(Top 87%)12729(Top 574%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4341

Males

4058

M45-49

4058

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4126

Males

3875

M45-49

3875

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4341

Males

4058

M45-49

4058

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4672

Males

4299

M45-49

4299

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4321

Males

4025

M45-49

4025

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10321

Males

7647

M45-49

7647

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

14984

Males

9544

M45-49

9544

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

13639

Males

8677

M45-49

8677

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

14701

Males

8992

M45-49

8992

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

16373

Males

9784

M45-49

9784

35K→23M

21.8 - 23.0 mi

Top 80%
×5stories
+23ft-63ft

Overall

20333

Males

11725

M45-49

11725

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

19564

Males

11285

M45-49

11285

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

20131

Males

11492

M45-49

11492

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11125

Males

6950

M45-49

6950

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2stories
+22ft-21ft

Overall

22438

Males

12729

M45-49

12729

Passing Analysis

Category:
Athletes Passed
712
Passed By
8258
Net Change
-7547
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4096
5K → 10K178171+7#4096#4089
10K → 15K111156-45#4089#4134
15K → 20K125223-98#4134#4232
20K → Half3015+15#4232#4217
Half → 25K281144-1116#4217#5333
25K → 30K161796-1780#5333#7113
30K → 20M40513-473#7113#7586
20M → 21M31489-458#7586#8044
21M → 35K25373-348#8044#8392
35K → 23M241181-1157#8392#9549
23M → 24M19730-712#9549#10261
24M → 40K14650-636#10261#10897
40K → 25.2M5349+4#10897#10893
25.2M → Finish18768-750#10893#11643
TOTALS7128258-7547
📊

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