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BOSTON MARATHON 2024

Zhaolong Zhong

Bib: 1461•M

CA

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 3%
Gender (Male)
#0 / 14578
Top 5%
Division (M18-39)
#0 / 4849
Top 13%
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
5:45/mi
17:53
↑ 97↓ 3451.5%
10K· 6.21 mi
5:54/mi
36:14
↑ 79↓ 1380.4%
15K· 9.32 mi
5:52/mi
54:29
↑ 67↓ 78
20K· 12.43 mi
6:05/mi
1:13:24
↑ 106↓ 860.1%
Half· 13.11 mi
5:46/mi
1:17:20
↑ 19↓ 370.5%
25K· 15.53 mi
6:18/mi
1:32:37
↑ 66↓ 880.2%
30K· 18.64 mi
6:37/mi
1:53:11
↑ 181↓ 1480.2%
20M
6:40/mi
2:02:15
↑ 64↓ 500.2%
21M
7:07/mi
2:09:22
↑ 106↓ 241.6%
35K· 21.75 mi
6:48/mi
2:14:27
↑ 17↓ 861.7%
23M
6:44/mi
2:22:53
↑ 23↓ 630.6%
24M
6:43/mi
2:29:36
↓ 821.3%
40K· 24.85 mi
6:40/mi
2:35:18
↓ 200.3%
25.2M
7:27/mi
2:37:52
↑ 13↓ 160.2%
Finish· 26.22 mi
6:34/mi
2:44:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:20
Pace5:54 /mi
2nd Half
Distance13.11 mi
Time1:27:13
Pace6:39 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0217:535:4517:53
5:45
-
10K
6.21 mi10:38:2336:145:5018:21
5:54
+0:09
15K
9.32 mi10:56:3854:295:5118:15
5:52
-0:02
20K
12.43 mi11:15:331:13:245:5418:55
6:05
+0:13
Half
13.11 mi11:19:291:17:205:543:56
5:46
-0:19
25K
15.53 mi11:34:461:32:375:5815:17
6:18
+0:32
30K
18.64 mi11:55:201:53:116:0420:34
6:37
+0:19
20M
20.00 mi12:04:242:02:156:079:04
6:40
+0:03
21M
21.00 mi12:11:312:09:226:107:07
7:07
+0:27
35K
21.75 mi12:16:362:14:276:115:05
6:48
-0:19
23M
23.00 mi12:25:022:22:536:138:26
6:44
-0:04
24M
24.00 mi12:31:452:29:366:146:43
6:43
-0:01
40K
24.85 mi12:37:272:35:186:155:42
6:40
-0:03
25.2M
25.20 mi12:40:012:37:526:162:34
7:27
+0:47
Finish
26.22 mi12:46:422:44:336:176:41
6:34
-0:53

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

5:45 /mi

Average Pace

6:17 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:37

56% of race

Time at Steady Pace

1:02:15

38% of race

Time at Slower Pace

9:41

6% of race

Average Pace: 6:17 /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 mi10:20:0217:535:4517:53
5:45
#449
10K
6.21 mi10:38:2336:145:5018:21
5:54
#522
15K
9.32 mi10:56:3854:295:5118:15
5:52
#518
20K
12.43 mi11:15:331:13:245:5418:55
6:05
#554
Half
13.11 mi11:19:291:17:205:543:56
5:46
#537
25K
15.53 mi11:34:461:32:375:5815:17
6:18
#607
30K
18.64 mi11:55:201:53:116:0420:34
6:37
#697
20M
20.00 mi12:04:242:02:156:079:04
6:40
#707
21M
21.00 mi12:11:312:09:226:107:07
7:07
#719
35K
21.75 mi12:16:362:14:276:115:05
6:48
#750
23M
23.00 mi12:25:022:22:536:138:26
6:44
#751
24M
24.00 mi12:31:452:29:366:146:43
6:43
#761
40K
24.85 mi12:37:272:35:186:155:42
6:40
#747
25.2M
25.20 mi12:40:012:37:526:162:34
7:27
#748
Finish
26.22 mi12:46:422:44:336:176:41
6:34
#759
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi449427427495(Top 2%)473(Top 3%)473(Top 10%)
10K6.21 mi3.10 mi522-73499-72499-72649(Top 3%)624(Top 4%)624(Top 13%)
15K9.32 mi3.11 mi518+4496+3496+3495(Top 2%)473(Top 3%)473(Top 10%)
20K12.43 mi3.11 mi554-36532-36532-36784(Top 3%)753(Top 5%)753(Top 16%)
Half13.11 mi0.68 mi537+17515+17515+17339(Top 1%)319(Top 2%)319(Top 7%)
25K15.53 mi2.42 mi607-70583-68583-681137(Top 4%)1098(Top 8%)1098(Top 23%)
30K18.64 mi3.11 mi697-90667-84667-841377(Top 5%)1316(Top 9%)1316(Top 27%)
20M20.00 mi1.36 mi707-10677-10677-101255(Top 5%)1189(Top 8%)1189(Top 25%)
21M21.00 mi1.00 mi719-12689-12689-121328(Top 5%)1253(Top 9%)1253(Top 26%)
35K21.75 mi0.75 mi750-31718-29718-292225(Top 9%)2042(Top 14%)2042(Top 42%)
23M23.00 mi1.25 mi751-1719-1719-11124(Top 4%)1056(Top 7%)1056(Top 22%)
24M24.00 mi1.00 mi761-10729-10729-101400(Top 5%)1299(Top 9%)1299(Top 27%)
40K24.85 mi0.85 mi747+14715+14715+141013(Top 4%)939(Top 6%)939(Top 19%)
25.2M25.20 mi0.35 mi748-1716-1716-11257(Top 5%)1143(Top 8%)1143(Top 24%)
Finish26.22 mi1.02 mi759-11727-11727-111527(Top 6%)1370(Top 9%)1370(Top 28%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21story building
+97ft-345ft

Overall

495

Males

473

M18-39

473

5K→10K

3.1 - 6.2 mi

Top 3%
×5story building
+79ft-138ft

Overall

649

Males

624

M18-39

624

10K→15K

6.2 - 9.3 mi

Top 2%
×3story building
+67ft-78ft

Overall

495

Males

473

M18-39

473

15K→20K

9.3 - 12.4 mi

Top 3%
×5story building
+106ft-86ft

Overall

784

Males

753

M18-39

753

20K→Half

12.4 - 13.1 mi

Top 1%
×2story building
+19ft-37ft

Overall

339

Males

319

M18-39

319

Half→25K

13.1 - 15.5 mi

Top 4%
×4story building
+66ft-88ft

Overall

1137

Males

1098

M18-39

1098

25K→30K

15.5 - 18.6 mi

Top 5%
×9story building
+181ft-148ft

Overall

1377

Males

1316

M18-39

1316

30K→20M

18.6 - 20.0 mi

Top 5%
×5story building
+64ft-50ft

Overall

1255

Males

1189

M18-39

1189

20M→21M

20.0 - 21.0 mi

Top 5%
×8story building
+106ft-24ft

Overall

1328

Males

1253

M18-39

1253

21M→35K

21.0 - 21.8 mi

Top 9%
×7story building
+17ft-86ft

Overall

2225

Males

2042

M18-39

2042

35K→23M

21.8 - 23.0 mi

Top 4%
×5story building
+23ft-63ft

Overall

1124

Males

1056

M18-39

1056

23M→24M

23.0 - 24.0 mi

Top 5%
×6story building
+12ft-82ft

Overall

1400

Males

1299

M18-39

1299

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1013

Males

939

M18-39

939

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1257

Males

1143

M18-39

1143

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2story building
+22ft-21ft

Overall

1527

Males

1370

M18-39

1370

Passing Analysis

Category:
Athletes Passed
216
Passed By
526
Net Change
-310
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#449
5K → 10K679-73#449#522
10K → 15K2824+4#522#518
15K → 20K1450-36#518#554
20K → Half181+17#554#537
Half → 25K1484-70#537#607
25K → 30K21111-90#607#697
30K → 20M1929-10#697#707
20M → 21M1123-12#707#719
21M → 35K839-31#719#750
35K → 23M2526-1#750#751
23M → 24M1121-10#751#761
24M → 40K2612+14#761#747
40K → 25.2M56-1#747#748
25.2M → Finish1021-11#748#759
TOTALS216526-310
📊

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