Boston Marathon logo
BOSTON MARATHON 2024

Chiu Chunlang

Bib: 10968•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 (M55-59)
#0 / 1529
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:51/mi
24:23
↑ 97↓ 3451.5%
10K· 6.21 mi
7:50/mi
48:43
↑ 79↓ 1380.4%
15K· 9.32 mi
7:49/mi
1:12:59
↑ 67↓ 78
20K· 12.43 mi
8:37/mi
1:39:45
↑ 106↓ 860.1%
Half· 13.11 mi
9:54/mi
1:46:30
↑ 19↓ 370.5%
25K· 15.53 mi
9:18/mi
2:09:03
↑ 66↓ 880.2%
30K· 18.64 mi
9:42/mi
2:39:10
↑ 181↓ 1480.2%
20M
9:02/mi
2:51:26
↑ 64↓ 500.2%
21M
12:54/mi
3:04:20
↑ 106↓ 241.6%
35K· 21.75 mi
9:52/mi
3:11:43
↑ 17↓ 861.7%
23M
11:01/mi
3:25:30
↑ 23↓ 630.6%
24M
8:45/mi
3:34:15
↓ 821.3%
40K· 24.85 mi
9:42/mi
3:42:33
↓ 200.3%
25.2M
9:57/mi
3:45:59
↑ 13↓ 160.2%
Finish· 26.22 mi
10:26/mi
3:56:37
↑ 22↓ 21

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
Time1:46:30
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time2:10:07
Pace9:56 /mi
📊Positive Split: 22.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:2824:237:5124:23
7:51
-
10K
6.21 mi11:15:4848:437:5024:20
7:50
-0:01
15K
9.32 mi11:40:041:12:597:5024:16
7:49
-0:01
20K
12.43 mi12:06:501:39:458:0226:46
8:37
+0:48
Half
13.11 mi12:13:351:46:308:076:45
9:54
+1:17
25K
15.53 mi12:36:082:09:038:1822:33
9:18
-0:36
30K
18.64 mi13:06:152:39:108:3230:07
9:42
+0:24
20M
20.00 mi13:18:312:51:268:3412:16
9:02
-0:40
21M
21.00 mi13:31:253:04:208:4712:54
12:54
+3:52
35K
21.75 mi13:38:483:11:438:497:23
9:52
-3:02
23M
23.00 mi13:52:353:25:308:5613:47
11:01
+1:09
24M
24.00 mi14:01:203:34:158:568:45
8:45
-2:16
40K
24.85 mi14:09:383:42:338:578:18
9:42
+0:57
25.2M
25.20 mi14:13:043:45:598:583:26
9:57
+0:15
Finish
26.22 mi14:23:423:56:379:0210:38
10:26
+0:29

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

7:49 /mi

Average Pace

9:02 /mi

Slowest Pace

12:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:46

51% of race

Time at Steady Pace

1:18:32

33% of race

Time at Slower Pace

37:19

16% of race

Average Pace: 9:01 /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 mi10:51:2824:237:5124:23
7:51
#13466
10K
6.21 mi11:15:4848:437:5024:20
7:50
#13146
15K
9.32 mi11:40:041:12:597:5024:16
7:49
#12778
20K
12.43 mi12:06:501:39:458:0226:46
8:37
#13618
Half
13.11 mi12:13:351:46:308:076:45
9:54
#14163
25K
15.53 mi12:36:082:09:038:1822:33
9:18
#14681
30K
18.64 mi13:06:152:39:108:3230:07
9:42
#15026
20M
20.00 mi13:18:312:51:268:3412:16
9:02
#14793
21M
21.00 mi13:31:253:04:208:4712:54
12:54
#15410
35K
21.75 mi13:38:483:11:438:497:23
9:52
#15500
23M
23.00 mi13:52:353:25:308:5613:47
11:01
#15791
24M
24.00 mi14:01:203:34:158:568:45
8:45
#15577
40K
24.85 mi14:09:383:42:338:578:18
9:42
#15503
25.2M
25.20 mi14:13:043:45:598:583:26
9:57
#15408
Finish
26.22 mi14:23:423:56:379:0210:38
10:26
#15591
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi134669453945312010(Top 47%)8736(Top 60%)8736(Top 571%)
10K6.21 mi3.10 mi13146+3209305+1489305+14812914(Top 51%)9172(Top 63%)9172(Top 600%)
15K9.32 mi3.11 mi12778+3689121+1849121+18412010(Top 47%)8736(Top 60%)8736(Top 571%)
20K12.43 mi3.11 mi13618-8409460-3399460-33915400(Top 60%)10130(Top 69%)10130(Top 663%)
Half13.11 mi0.68 mi14163-5459664-2049664-20421167(Top 83%)12620(Top 87%)12620(Top 825%)
25K15.53 mi2.42 mi14681-5189838-1749838-17416804(Top 66%)10615(Top 73%)10615(Top 694%)
30K18.64 mi3.11 mi15026-3459893-559893-5516217(Top 63%)10102(Top 69%)10102(Top 661%)
20M20.00 mi1.36 mi14793+2339763+1309763+13012257(Top 48%)8078(Top 55%)8078(Top 528%)
21M21.00 mi1.00 mi15410-6179968-2059968-20520541(Top 80%)11900(Top 82%)11900(Top 778%)
35K21.75 mi0.75 mi15500-909974-69974-616725(Top 65%)9967(Top 68%)9967(Top 652%)
23M23.00 mi1.25 mi15791-29110061-8710061-8718435(Top 72%)10772(Top 74%)10772(Top 705%)
24M24.00 mi1.00 mi15577+2149926+1359926+13510844(Top 42%)6978(Top 48%)6978(Top 456%)
40K24.85 mi0.85 mi15503+749865+619865+6113909(Top 54%)8391(Top 58%)8391(Top 549%)
25.2M25.20 mi0.35 mi15408+959808+579808+5710763(Top 42%)6780(Top 47%)6780(Top 443%)
Finish26.22 mi1.02 mi15591-1839865-579865-5719798(Top 77%)11377(Top 78%)11377(Top 744%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

12010

Males

8736

M55-59

8736

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

12914

Males

9172

M55-59

9172

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

12010

Males

8736

M55-59

8736

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

15400

Males

10130

M55-59

10130

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

21167

Males

12620

M55-59

12620

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

16804

Males

10615

M55-59

10615

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

16217

Males

10102

M55-59

10102

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12257

Males

8078

M55-59

8078

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

20541

Males

11900

M55-59

11900

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

16725

Males

9967

M55-59

9967

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

18435

Males

10772

M55-59

10772

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

10844

Males

6978

M55-59

6978

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

13909

Males

8391

M55-59

8391

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

10763

Males

6780

M55-59

6780

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

19798

Males

11377

M55-59

11377

Passing Analysis

Category:
Athletes Passed
2132
Passed By
4257
Net Change
-2125
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13466
5K → 10K477157+320#13466#13146
10K → 15K43668+368#13146#12778
15K → 20K91931-840#12778#13618
20K → Half6551-545#13618#14163
Half → 25K101619-518#14163#14681
25K → 30K165510-345#14681#15026
30K → 20M26128+233#15026#14793
20M → 21M27644-617#14793#15410
21M → 35K52142-90#15410#15500
35K → 23M60351-291#15500#15791
23M → 24M2184+214#15791#15577
24M → 40K11036+74#15577#15503
40K → 25.2M961+95#15503#15408
25.2M → Finish32215-183#15408#15591
TOTALS21324257-2125
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing