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BOSTON MARATHON 2024

Sainan Zhang

Bib: 29396•F

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Division (F18-39)
#0 / 4660
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:09
Rank: #19018
Start → 5K
27:09 | 8:44/mi
10K· 6.21 mi
56:37
Rank: #20312 (-1294)
5K → 10K
29:28 | 9:29/mi
15K· 9.32 mi
1:30:07
Rank: #21694 (-1382)
10K → 15K
33:30 | 10:47/mi
20K· 12.43 mi
2:06:25
Rank: #22369 (-675)
15K → 20K
36:18 | 11:41/mi
Half· 13.11 mi
2:14:02
Rank: #22443 (-74)
20K → Half
7:37 | 11:10/mi
25K· 15.53 mi
2:43:58
Rank: #22701 (-258)
Half → 25K
29:56 | 12:21/mi
30K· 18.64 mi
3:26:01
Rank: #23068 (-367)
25K → 30K
42:03 | 13:32/mi
20M
3:46:55
Rank: #23325 (-257)
30K → 20M
20:54 | 15:23/mi
21M
4:01:27
Rank: #23293 (+32)
20M → 21M
14:32 | 14:32/mi
35K· 21.75 mi
4:11:44
Rank: #23325 (-32)
21M → 35K
10:17 | 13:45/mi
23M
4:28:52
Rank: #23334 (-9)
35K → 23M
17:08 | 13:41/mi
24M
4:41:52
Rank: #23342 (-8)
23M → 24M
13:00 | 13:00/mi
40K· 24.85 mi
4:53:03
Rank: #23346 (-4)
24M → 40K
11:11 | 13:05/mi
25.2M
4:57:51
Rank: #23334 (+12)
40K → 25.2M
4:48 | 13:55/mi
Finish· 26.22 mi
5:10:04
Rank: #23343 (-9)
25.2M → Finish
12:13 | 11:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:02
Pace10:13 /mi
2nd Half
Distance13.11 mi
Time2:56:02
Pace13:26 /mi
📊Positive Split: 31.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2627:098:4427:09
8:44
-
10K
6.21 mi12:20:5456:379:0729:28
9:29
+0:45
15K
9.32 mi12:54:241:30:079:4033:30
10:47
+1:18
20K
12.43 mi13:30:422:06:2510:1036:18
11:41
+0:54
Half
13.11 mi13:38:192:14:0210:137:37
11:10
-0:31
25K
15.53 mi14:08:152:43:5810:3329:56
12:21
+1:11
30K
18.64 mi14:50:183:26:0111:0342:03
13:32
+1:11
20M
20.00 mi15:11:123:46:5511:2120:54
15:23
+1:51
21M
21.00 mi15:25:444:01:2711:3014:32
14:32
-0:51
35K
21.75 mi15:36:014:11:4411:3510:17
13:45
-0:47
23M
23.00 mi15:53:094:28:5211:4117:08
13:41
-0:04
24M
24.00 mi16:06:094:41:5211:4513:00
13:00
-0:41
40K
24.85 mi16:17:204:53:0311:4711:11
13:05
+0:05
25.2M
25.20 mi16:22:084:57:5111:494:48
13:55
+0:50
Finish
26.22 mi16:34:215:10:0411:5012:13
11:59
-1:56

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

8:44 /mi

Average Pace

11:50 /mi

Slowest Pace

15:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:15

47% of race

Time at Steady Pace

2:03:35

40% of race

Time at Slower Pace

40:14

13% of race

Average Pace: 11:50 /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 mi11:51:2627:098:4427:09
8:44
#19018
10K
6.21 mi12:20:5456:379:0729:28
9:29
#20312
15K
9.32 mi12:54:241:30:079:4033:30
10:47
#21694
20K
12.43 mi13:30:422:06:2510:1036:18
11:41
#22369
Half
13.11 mi13:38:192:14:0210:137:37
11:10
#22443
25K
15.53 mi14:08:152:43:5810:3329:56
12:21
#22701
30K
18.64 mi14:50:183:26:0111:0342:03
13:32
#23068
20M
20.00 mi15:11:123:46:5511:2120:54
15:23
#23325
21M
21.00 mi15:25:444:01:2711:3014:32
14:32
#23293
35K
21.75 mi15:36:014:11:4411:3510:17
13:45
#23325
23M
23.00 mi15:53:094:28:5211:4117:08
13:41
#23334
24M
24.00 mi16:06:094:41:5211:4513:00
13:00
#23342
40K
24.85 mi16:17:204:53:0311:4711:11
13:05
#23346
25.2M
25.20 mi16:22:084:57:5111:494:48
13:55
#23334
Finish
26.22 mi16:34:215:10:0411:5012:13
11:59
#23343
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi190187362736223418(Top 92%)9642(Top 88%)9642(Top 207%)
10K6.21 mi3.10 mi20312-12948024-6628024-66221324(Top 83%)8552(Top 78%)8552(Top 184%)
15K9.32 mi3.11 mi21694-13828737-7138737-71323418(Top 92%)9642(Top 88%)9642(Top 207%)
20K12.43 mi3.11 mi22369-6759102-3659102-36523612(Top 92%)9790(Top 90%)9790(Top 210%)
Half13.11 mi0.68 mi22443-749133-319133-3123739(Top 93%)9909(Top 91%)9909(Top 213%)
25K15.53 mi2.42 mi22701-2589275-1429275-14223574(Top 92%)9849(Top 90%)9849(Top 211%)
30K18.64 mi3.11 mi23068-3679540-2659540-26523848(Top 93%)10085(Top 92%)10085(Top 216%)
20M20.00 mi1.36 mi23325-2579698-1589698-15824966(Top 98%)10685(Top 98%)10685(Top 229%)
21M21.00 mi1.00 mi23293+329686+129686+1223033(Top 90%)9802(Top 90%)9802(Top 210%)
35K21.75 mi0.75 mi23325-329711-259711-2524062(Top 94%)10334(Top 95%)10334(Top 222%)
23M23.00 mi1.25 mi23334-99730-199730-1923434(Top 92%)10034(Top 92%)10034(Top 215%)
24M24.00 mi1.00 mi23342-89743-139743-1323083(Top 90%)9942(Top 91%)9942(Top 213%)
40K24.85 mi0.85 mi23346-49751-89751-822394(Top 88%)9651(Top 88%)9651(Top 207%)
25.2M25.20 mi0.35 mi23334+129749+29749+221499(Top 84%)9235(Top 85%)9235(Top 198%)
Finish26.22 mi1.02 mi23343-99769-209769-2023223(Top 91%)10047(Top 92%)10047(Top 216%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21stories
+97ft-345ft

Overall

23418

Females

9642

F18-39

9642

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

21324

Females

8552

F18-39

8552

10K→15K

6.2 - 9.3 mi

Top 92%
×3stories
+67ft-78ft

Overall

23418

Females

9642

F18-39

9642

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

23612

Females

9790

F18-39

9790

20K→Half

12.4 - 13.1 mi

Top 93%
×2stories
+19ft-37ft

Overall

23739

Females

9909

F18-39

9909

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

23574

Females

9849

F18-39

9849

25K→30K

15.5 - 18.6 mi

Top 93%
×9stories
+181ft-148ft

Overall

23848

Females

10085

F18-39

10085

30K→20M

18.6 - 20.0 mi

Top 98%
×5stories
+64ft-50ft

Overall

24966

Females

10685

F18-39

10685

20M→21M

20.0 - 21.0 mi

Top 90%
×8stories
+106ft-24ft

Overall

23033

Females

9802

F18-39

9802

21M→35K

21.0 - 21.8 mi

Top 94%
×7stories
+17ft-86ft

Overall

24062

Females

10334

F18-39

10334

35K→23M

21.8 - 23.0 mi

Top 92%
×5stories
+23ft-63ft

Overall

23434

Females

10034

F18-39

10034

23M→24M

23.0 - 24.0 mi

Top 90%
×6stories
+12ft-82ft

Overall

23083

Females

9942

F18-39

9942

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

22394

Females

9651

F18-39

9651

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

21499

Females

9235

F18-39

9235

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2stories
+22ft-21ft

Overall

23223

Females

10047

F18-39

10047

Passing Analysis

Category:
Athletes Passed
502
Passed By
4827
Net Change
-4325
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19018
5K → 10K361330-1294#19018#20312
10K → 15K181400-1382#20312#21694
15K → 20K39714-675#21694#22369
20K → Half1690-74#22369#22443
Half → 25K53311-258#22443#22701
25K → 30K56423-367#22701#23068
30K → 20M16273-257#23068#23325
20M → 21M6533+32#23325#23293
21M → 35K2759-32#23293#23325
35K → 23M4857-9#23325#23334
23M → 24M3745-8#23334#23342
24M → 40K2731-4#23342#23346
40K → 25.2M2210+12#23346#23334
25.2M → Finish4251-9#23334#23343
TOTALS5024827-4325
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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