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BOSTON MARATHON 2024

Karen Bizarro

Bib: 18616•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 46%
Gender (Female)
#0 / 10924
Top 33%
Masters (Masters Women)
#0 / 6263
Top 20%
Division (F45-49)
#0 / 1753
Top 25%
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
7:53/mi
24:29
↑ 97↓ 3451.5%
10K· 6.21 mi
7:57/mi
49:11
↑ 79↓ 1380.4%
15K· 9.32 mi
8:01/mi
1:14:05
↑ 67↓ 78
20K· 12.43 mi
8:06/mi
1:39:14
↑ 106↓ 860.1%
Half· 13.11 mi
7:55/mi
1:44:38
↑ 19↓ 370.5%
25K· 15.53 mi
8:06/mi
2:04:17
↑ 66↓ 880.2%
30K· 18.64 mi
8:26/mi
2:30:30
↑ 181↓ 1480.2%
20M
8:40/mi
2:42:16
↑ 64↓ 500.2%
21M
9:54/mi
2:52:10
↑ 106↓ 241.6%
35K· 21.75 mi
8:27/mi
2:58:29
↑ 17↓ 861.7%
23M
8:59/mi
3:09:44
↑ 23↓ 630.6%
24M
8:30/mi
3:18:14
↓ 821.3%
40K· 24.85 mi
8:58/mi
3:25:54
↓ 200.3%
25.2M
10:47/mi
3:29:37
↑ 13↓ 160.2%
Finish· 26.22 mi
9:15/mi
3:39:03
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:38
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time1:54:25
Pace8:44 /mi
📊Positive Split: 9.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:4424:297:5324:29
7:53
-
10K
6.21 mi11:41:2649:117:5524:42
7:57
+0:04
15K
9.32 mi12:06:201:14:057:5724:54
8:01
+0:04
20K
12.43 mi12:31:291:39:147:5925:09
8:06
+0:05
Half
13.11 mi12:36:531:44:387:595:24
7:55
-0:11
25K
15.53 mi12:56:322:04:178:0019:39
8:06
+0:11
30K
18.64 mi13:22:452:30:308:0426:13
8:26
+0:20
20M
20.00 mi13:34:312:42:168:0711:46
8:40
+0:14
21M
21.00 mi13:44:252:52:108:129:54
9:54
+1:14
35K
21.75 mi13:50:442:58:298:126:19
8:27
-1:27
23M
23.00 mi14:01:593:09:448:1511:15
8:59
+0:32
24M
24.00 mi14:10:293:18:148:168:30
8:30
-0:29
40K
24.85 mi14:18:093:25:548:177:40
8:58
+0:28
25.2M
25.20 mi14:21:523:29:378:193:43
10:47
+1:49
Finish
26.22 mi14:31:183:39:038:229:26
9:15
-1:32

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

7:53 /mi

Average Pace

8:22 /mi

Slowest Pace

10:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:29

36% of race

Time at Steady Pace

1:37:36

45% of race

Time at Slower Pace

41:58

19% of race

Average Pace: 8:21 /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 mi11:16:4424:297:5324:29
7:53
#13740
10K
6.21 mi11:41:2649:117:5524:42
7:57
#13780
15K
9.32 mi12:06:201:14:057:5724:54
8:01
#13680
20K
12.43 mi12:31:291:39:147:5925:09
8:06
#13312
Half
13.11 mi12:36:531:44:387:595:24
7:55
#13228
25K
15.53 mi12:56:322:04:178:0019:39
8:06
#12728
30K
18.64 mi13:22:452:30:308:0426:13
8:26
#12178
20M
20.00 mi13:34:312:42:168:0711:46
8:40
#11993
21M
21.00 mi13:44:252:52:108:129:54
9:54
#11983
35K
21.75 mi13:50:442:58:298:126:19
8:27
#11910
23M
23.00 mi14:01:593:09:448:1511:15
8:59
#11798
24M
24.00 mi14:10:293:18:148:168:30
8:30
#11632
40K
24.85 mi14:18:093:25:548:177:40
8:58
#11561
25.2M
25.20 mi14:21:523:29:378:193:43
10:47
#11599
Finish
26.22 mi14:31:183:39:038:229:26
9:15
#11754
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi137404142414213550(Top 53%)4109(Top 38%)4109(Top 234%)
10K6.21 mi3.10 mi13780-404197-554197-5513837(Top 54%)4252(Top 39%)4252(Top 243%)
15K9.32 mi3.11 mi13680+1004169+284169+2813550(Top 53%)4109(Top 38%)4109(Top 234%)
20K12.43 mi3.11 mi13312+3683965+2043965+20412503(Top 49%)3583(Top 33%)3583(Top 204%)
Half13.11 mi0.68 mi13228+843924+413924+4112200(Top 48%)3438(Top 31%)3438(Top 196%)
25K15.53 mi2.42 mi12728+5003663+2613663+26110844(Top 42%)2891(Top 26%)2891(Top 165%)
30K18.64 mi3.11 mi12178+5503449+2143449+21410334(Top 40%)2867(Top 26%)2867(Top 164%)
20M20.00 mi1.36 mi11993+1853404+453404+4510337(Top 40%)3123(Top 29%)3123(Top 178%)
21M21.00 mi1.00 mi11983+103455-513455-5112586(Top 49%)4567(Top 42%)4567(Top 261%)
35K21.75 mi0.75 mi11910+733447+83447+810433(Top 41%)3458(Top 32%)3458(Top 197%)
23M23.00 mi1.25 mi11798+1123463-163463-1611095(Top 43%)3945(Top 36%)3945(Top 225%)
24M24.00 mi1.00 mi11632+1663423+403423+409482(Top 37%)3185(Top 29%)3185(Top 182%)
40K24.85 mi0.85 mi11561+713425-23425-210735(Top 42%)3934(Top 36%)3934(Top 224%)
25.2M25.20 mi0.35 mi11599-383471-463471-4613773(Top 54%)5434(Top 50%)5434(Top 310%)
Finish26.22 mi1.02 mi11754-1553599-1283599-12815393(Top 60%)6194(Top 57%)6194(Top 353%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

13550

Females

4109

F45-49

4109

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

13837

Females

4252

F45-49

4252

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

13550

Females

4109

F45-49

4109

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

12503

Females

3583

F45-49

3583

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

12200

Females

3438

F45-49

3438

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

10844

Females

2891

F45-49

2891

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

10334

Females

2867

F45-49

2867

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10337

Females

3123

F45-49

3123

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

12586

Females

4567

F45-49

4567

21M→35K

21.0 - 21.8 mi

Top 41%
×7story building
+17ft-86ft

Overall

10433

Females

3458

F45-49

3458

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

11095

Females

3945

F45-49

3945

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

9482

Females

3185

F45-49

3185

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

10735

Females

3934

F45-49

3934

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

13773

Females

5434

F45-49

5434

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

15393

Females

6194

F45-49

6194

Passing Analysis

Category:
Athletes Passed
3308
Passed By
1322
Net Change
+1986
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13740
5K → 10K286326-40#13740#13780
10K → 15K260160+100#13780#13680
15K → 20K44779+368#13680#13312
20K → Half10016+84#13312#13228
Half → 25K53232+500#13228#12728
25K → 30K60959+550#12728#12178
30K → 20M22944+185#12178#11993
20M → 21M150140+10#11993#11983
21M → 35K10936+73#11983#11910
35K → 23M17765+112#11910#11798
23M → 24M19327+166#11798#11632
24M → 40K12756+71#11632#11561
40K → 25.2M3472-38#11561#11599
25.2M → Finish55210-155#11599#11754
TOTALS33081322+1986
📊

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