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BOSTON MARATHON 2024

Steven Chiu

Bib: 11335•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 45%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 47%
Division (M50-54)
#0 / 1935
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
8:01/mi
24:53
↑ 97↓ 3451.5%
10K· 6.21 mi
8:02/mi
49:52
↑ 79↓ 1380.4%
15K· 9.32 mi
8:00/mi
1:14:44
↑ 67↓ 78
20K· 12.43 mi
8:11/mi
1:40:10
↑ 106↓ 860.1%
Half· 13.11 mi
8:11/mi
1:45:45
↑ 19↓ 370.5%
25K· 15.53 mi
8:24/mi
2:06:08
↑ 66↓ 880.2%
30K· 18.64 mi
8:39/mi
2:33:00
↑ 181↓ 1480.2%
20M
8:38/mi
2:44:44
↑ 64↓ 500.2%
21M
8:59/mi
2:53:43
↑ 106↓ 241.6%
35K· 21.75 mi
8:25/mi
3:00:01
↑ 17↓ 861.7%
23M
8:58/mi
3:11:14
↑ 23↓ 630.6%
24M
8:39/mi
3:19:53
↓ 821.3%
40K· 24.85 mi
8:35/mi
3:27:13
↓ 200.3%
25.2M
9:37/mi
3:30:32
↑ 13↓ 160.2%
Finish· 26.22 mi
7:50/mi
3:38:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:45
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:52:46
Pace8:36 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0924:538:0124:53
8:01
-
10K
6.21 mi11:18:0849:528:0224:59
8:02
+0:01
15K
9.32 mi11:43:001:14:448:0124:52
8:00
-0:02
20K
12.43 mi12:08:261:40:108:0425:26
8:11
+0:11
Half
13.11 mi12:14:011:45:458:045:35
8:11
0:00
25K
15.53 mi12:34:242:06:088:0720:23
8:24
+0:13
30K
18.64 mi13:01:162:33:008:1226:52
8:39
+0:15
20M
20.00 mi13:13:002:44:448:1411:44
8:38
-0:01
21M
21.00 mi13:21:592:53:438:168:59
8:59
+0:21
35K
21.75 mi13:28:173:00:018:176:18
8:25
-0:34
23M
23.00 mi13:39:303:11:148:1911:13
8:58
+0:33
24M
24.00 mi13:48:093:19:538:208:39
8:39
-0:19
40K
24.85 mi13:55:293:27:138:207:20
8:35
-0:04
25.2M
25.20 mi13:58:483:30:328:213:19
9:37
+1:02
Finish
26.22 mi14:06:473:38:318:207:59
7:50
-1:47

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

7:50 /mi

Average Pace

8:20 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:44

52% of race

Time at Steady Pace

45:45

21% of race

Time at Slower Pace

59:02

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 mi10:53:0924:538:0124:53
8:01
#14695
10K
6.21 mi11:18:0849:528:0224:59
8:02
#14585
15K
9.32 mi11:43:001:14:448:0124:52
8:00
#14176
20K
12.43 mi12:08:261:40:108:0425:26
8:11
#13818
Half
13.11 mi12:14:011:45:458:045:35
8:11
#13803
25K
15.53 mi12:34:242:06:088:0720:23
8:24
#13552
30K
18.64 mi13:01:162:33:008:1226:52
8:39
#13005
20M
20.00 mi13:13:002:44:448:1411:44
8:38
#12742
21M
21.00 mi13:21:592:53:438:168:59
8:59
#12438
35K
21.75 mi13:28:173:00:018:176:18
8:25
#12331
23M
23.00 mi13:39:303:11:148:1911:13
8:58
#12194
24M
24.00 mi13:48:093:19:538:208:39
8:39
#12066
40K
24.85 mi13:55:293:27:138:207:20
8:35
#11915
25.2M
25.20 mi13:58:483:30:328:213:19
9:37
#11841
Finish
26.22 mi14:06:473:38:318:207:59
7:50
#11620
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi146959902990213471(Top 53%)9374(Top 64%)9374(Top 484%)
10K6.21 mi3.10 mi14585+1109867+359867+3514477(Top 57%)9825(Top 67%)9825(Top 508%)
15K9.32 mi3.11 mi14176+4099697+1709697+17013471(Top 53%)9374(Top 64%)9374(Top 484%)
20K12.43 mi3.11 mi13818+3589532+1659532+16513037(Top 51%)9137(Top 63%)9137(Top 472%)
Half13.11 mi0.68 mi13803+159530+29530+213869(Top 54%)9423(Top 65%)9423(Top 487%)
25K15.53 mi2.42 mi13552+2519396+1349396+13412537(Top 49%)8713(Top 60%)8713(Top 450%)
30K18.64 mi3.11 mi13005+5479062+3349062+33411422(Top 45%)7990(Top 55%)7990(Top 413%)
20M20.00 mi1.36 mi12742+2638891+1718891+17110165(Top 40%)7113(Top 49%)7113(Top 368%)
21M21.00 mi1.00 mi12438+3048702+1898702+1898512(Top 33%)6055(Top 42%)6055(Top 313%)
35K21.75 mi0.75 mi12331+1078605+978605+9710251(Top 40%)6868(Top 47%)6868(Top 355%)
23M23.00 mi1.25 mi12194+1378487+1188487+11810948(Top 43%)7052(Top 48%)7052(Top 364%)
24M24.00 mi1.00 mi12066+1288380+1078380+10710287(Top 40%)6677(Top 46%)6677(Top 345%)
40K24.85 mi0.85 mi11915+1518267+1138267+1138754(Top 34%)5785(Top 40%)5785(Top 299%)
25.2M25.20 mi0.35 mi11841+748216+518216+519206(Top 36%)5943(Top 41%)5943(Top 307%)
Finish26.22 mi1.02 mi11620+2218068+1488068+1487535(Top 29%)5175(Top 35%)5175(Top 267%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

13471

Males

9374

M50-54

9374

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

14477

Males

9825

M50-54

9825

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

13471

Males

9374

M50-54

9374

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

13037

Males

9137

M50-54

9137

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

13869

Males

9423

M50-54

9423

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

12537

Males

8713

M50-54

8713

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

11422

Males

7990

M50-54

7990

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10165

Males

7113

M50-54

7113

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

8512

Males

6055

M50-54

6055

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

10251

Males

6868

M50-54

6868

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

10948

Males

7052

M50-54

7052

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

10287

Males

6677

M50-54

6677

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

8754

Males

5785

M50-54

5785

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9206

Males

5943

M50-54

5943

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7535

Males

5175

M50-54

5175

Passing Analysis

Category:
Athletes Passed
3791
Passed By
716
Net Change
+3075
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14695
5K → 10K335225+110#14695#14585
10K → 15K47768+409#14585#14176
15K → 20K43274+358#14176#13818
20K → Half4429+15#13818#13803
Half → 25K33382+251#13803#13552
25K → 30K60659+547#13552#13005
30K → 20M28825+263#13005#12742
20M → 21M3139+304#12742#12438
21M → 35K13124+107#12438#12331
35K → 23M19558+137#12331#12194
23M → 24M16032+128#12194#12066
24M → 40K17221+151#12066#11915
40K → 25.2M828+74#11915#11841
25.2M → Finish2232+221#11841#11620
TOTALS3791716+3075
📊

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