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BOSTON MARATHON 2024

Karen Zhong

Bib: 22199•F

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 39%
Masters (Masters Women)
#0 / 6263
Top 27%
Division (F55-59)
#0 / 876
Top 10%
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
8:13/mi
25:32
↑ 97↓ 3451.5%
10K· 6.21 mi
8:16/mi
51:13
↑ 79↓ 1380.4%
15K· 9.32 mi
8:22/mi
1:17:14
↑ 67↓ 78
20K· 12.43 mi
8:32/mi
1:43:44
↑ 106↓ 860.1%
Half· 13.11 mi
8:12/mi
1:49:20
↑ 19↓ 370.5%
25K· 15.53 mi
8:36/mi
2:10:12
↑ 66↓ 880.2%
30K· 18.64 mi
8:51/mi
2:37:42
↑ 181↓ 1480.2%
20M
8:51/mi
2:49:43
↑ 64↓ 500.2%
21M
9:17/mi
2:59:00
↑ 106↓ 241.6%
35K· 21.75 mi
8:20/mi
3:05:14
↑ 17↓ 861.7%
23M
8:55/mi
3:16:24
↑ 23↓ 630.6%
24M
8:21/mi
3:24:45
↓ 821.3%
40K· 24.85 mi
8:57/mi
3:32:24
↓ 200.3%
25.2M
9:49/mi
3:35:47
↑ 13↓ 160.2%
Finish· 26.22 mi
8:09/mi
3:44:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:20
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time1:54:45
Pace8:45 /mi
📊Positive Split: 5.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:4525:328:1325:32
8:13
-
10K
6.21 mi11:47:2651:138:1525:41
8:16
+0:03
15K
9.32 mi12:13:271:17:148:1726:01
8:22
+0:06
20K
12.43 mi12:39:571:43:448:2126:30
8:32
+0:10
Half
13.11 mi12:45:331:49:208:205:36
8:12
-0:20
25K
15.53 mi13:06:252:10:128:2320:52
8:36
+0:24
30K
18.64 mi13:33:552:37:428:2827:30
8:51
+0:15
20M
20.00 mi13:45:562:49:438:2912:01
8:51
0:00
21M
21.00 mi13:55:132:59:008:319:17
9:17
+0:26
35K
21.75 mi14:01:273:05:148:316:14
8:20
-0:57
23M
23.00 mi14:12:373:16:248:3211:10
8:55
+0:35
24M
24.00 mi14:20:583:24:458:328:21
8:21
-0:34
40K
24.85 mi14:28:373:32:248:337:39
8:57
+0:36
25.2M
25.20 mi14:32:003:35:478:343:23
9:49
+0:52
Finish
26.22 mi14:40:183:44:058:338:18
8:09
-1:40

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

8:09 /mi

Average Pace

8:33 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:05:07

29% of race

Time at Steady Pace

1:27:58

39% of race

Time at Slower Pace

1:11:00

32% of race

Average Pace: 8:33 /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 mi11:21:4525:328:1325:32
8:13
#16147
10K
6.21 mi11:47:2651:138:1525:41
8:16
#16002
15K
9.32 mi12:13:271:17:148:1726:01
8:22
#15819
20K
12.43 mi12:39:571:43:448:2126:30
8:32
#15546
Half
13.11 mi12:45:331:49:208:205:36
8:12
#15458
25K
15.53 mi13:06:252:10:128:2320:52
8:36
#15099
30K
18.64 mi13:33:552:37:428:2827:30
8:51
#14592
20M
20.00 mi13:45:562:49:438:2912:01
8:51
#14291
21M
21.00 mi13:55:132:59:008:319:17
9:17
#13993
35K
21.75 mi14:01:273:05:148:316:14
8:20
#13790
23M
23.00 mi14:12:373:16:248:3211:10
8:55
#13603
24M
24.00 mi14:20:583:24:458:328:21
8:21
#13331
40K
24.85 mi14:28:373:32:248:337:39
8:57
#13181
25.2M
25.20 mi14:32:003:35:478:343:23
9:49
#13106
Finish
26.22 mi14:40:183:44:058:338:18
8:09
#12921
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi161475648564815685(Top 61%)5377(Top 49%)5377(Top 614%)
10K6.21 mi3.10 mi16002+1455536+1125536+11215936(Top 62%)5492(Top 50%)5492(Top 627%)
15K9.32 mi3.11 mi15819+1835453+835453+8315685(Top 61%)5377(Top 49%)5377(Top 614%)
20K12.43 mi3.11 mi15546+2735292+1615292+16114958(Top 59%)4982(Top 46%)4982(Top 569%)
Half13.11 mi0.68 mi15458+885245+475245+4714093(Top 55%)4527(Top 41%)4527(Top 517%)
25K15.53 mi2.42 mi15099+3595057+1885057+18813628(Top 53%)4396(Top 40%)4396(Top 502%)
30K18.64 mi3.11 mi14592+5074837+2204837+22012471(Top 49%)3990(Top 37%)3990(Top 455%)
20M20.00 mi1.36 mi14291+3014705+1324705+13211316(Top 44%)3657(Top 33%)3657(Top 417%)
21M21.00 mi1.00 mi13993+2984595+1104595+1109882(Top 39%)3169(Top 29%)3169(Top 362%)
35K21.75 mi0.75 mi13790+2034518+774518+779828(Top 38%)3144(Top 29%)3144(Top 359%)
23M23.00 mi1.25 mi13603+1874470+484470+4810757(Top 42%)3781(Top 35%)3781(Top 432%)
24M24.00 mi1.00 mi13331+2724364+1064364+1068609(Top 34%)2778(Top 25%)2778(Top 317%)
40K24.85 mi0.85 mi13181+1504312+524312+5210640(Top 42%)3891(Top 36%)3891(Top 444%)
25.2M25.20 mi0.35 mi13106+754291+214291+2110200(Top 40%)3730(Top 34%)3730(Top 426%)
Finish26.22 mi1.02 mi12921+1854238+534238+539496(Top 37%)3285(Top 30%)3285(Top 375%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

15685

Females

5377

F55-59

5377

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

15936

Females

5492

F55-59

5492

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

15685

Females

5377

F55-59

5377

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

14958

Females

4982

F55-59

4982

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

14093

Females

4527

F55-59

4527

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

13628

Females

4396

F55-59

4396

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

12471

Females

3990

F55-59

3990

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

11316

Females

3657

F55-59

3657

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

9882

Females

3169

F55-59

3169

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

9828

Females

3144

F55-59

3144

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

10757

Females

3781

F55-59

3781

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

8609

Females

2778

F55-59

2778

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

10640

Females

3891

F55-59

3891

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10200

Females

3730

F55-59

3730

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

9496

Females

3285

F55-59

3285

Passing Analysis

Category:
Athletes Passed
3905
Passed By
679
Net Change
+3226
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16147
5K → 10K351206+145#16147#16002
10K → 15K319136+183#16002#15819
15K → 20K381108+273#15819#15546
20K → Half957+88#15546#15458
Half → 25K40748+359#15458#15099
25K → 30K56558+507#15099#14592
30K → 20M31918+301#14592#14291
20M → 21M31113+298#14291#13993
21M → 35K2107+203#13993#13790
35K → 23M22134+187#13790#13603
23M → 24M2753+272#13603#13331
24M → 40K16515+150#13331#13181
40K → 25.2M816+75#13181#13106
25.2M → Finish20520+185#13106#12921
TOTALS3905679+3226
📊

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