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BOSTON MARATHON 2024

Stacy Morozov

Bib: 9166•F

IN

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 20%
Gender (Female)
#0 / 10924
Top 6%
Division (F18-39)
#0 / 4660
Top 11%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:07
Rank: #5641
Start → 5K
21:07 | 6:48/mi
10K· 6.21 mi
41:37
Rank: #4530 (+1111)
5K → 10K
20:30 | 6:36/mi
15K· 9.32 mi
1:02:12
Rank: #4094 (+436)
10K → 15K
20:35 | 6:38/mi
20K· 12.43 mi
1:23:10
Rank: #3898 (+196)
15K → 20K
20:58 | 6:45/mi
Half· 13.11 mi
1:27:46
Rank: #3909 (-11)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:44:24
Rank: #3806 (+103)
Half → 25K
16:38 | 6:52/mi
30K· 18.64 mi
2:07:04
Rank: #3826 (-20)
25K → 30K
22:40 | 7:18/mi
20M
2:18:22
Rank: #4223 (-397)
30K → 20M
11:18 | 8:19/mi
21M
2:27:28
Rank: #4444 (-221)
20M → 21M
9:06 | 9:06/mi
35K· 21.75 mi
2:33:59
Rank: #4653 (-209)
21M → 35K
6:31 | 8:43/mi
23M
2:45:35
Rank: #4961 (-308)
35K → 23M
11:36 | 9:16/mi
24M
2:54:48
Rank: #5234 (-273)
23M → 24M
9:13 | 9:13/mi
40K· 24.85 mi
3:01:49
Rank: #5216 (+18)
24M → 40K
7:01 | 8:12/mi
25.2M
3:04:49
Rank: #5177 (+39)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:12:02
Rank: #5034 (+143)
25.2M → Finish
7:13 | 7:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:46
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:44:16
Pace7:57 /mi
📊Positive Split: 18.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:0321:076:4821:07
6:48
-
10K
6.21 mi11:07:3341:376:4220:30
6:36
-0:12
15K
9.32 mi11:28:081:02:126:4020:35
6:38
+0:02
20K
12.43 mi11:49:061:23:106:4220:58
6:45
+0:07
Half
13.11 mi11:53:421:27:466:424:36
6:45
0:00
25K
15.53 mi12:10:201:44:246:4316:38
6:52
+0:07
30K
18.64 mi12:33:002:07:046:4922:40
7:18
+0:26
20M
20.00 mi12:44:182:18:226:5511:18
8:19
+1:01
21M
21.00 mi12:53:242:27:287:019:06
9:06
+0:47
35K
21.75 mi12:59:552:33:597:056:31
8:43
-0:23
23M
23.00 mi13:11:312:45:357:1211:36
9:16
+0:33
24M
24.00 mi13:20:442:54:487:179:13
9:13
-0:03
40K
24.85 mi13:27:453:01:497:197:01
8:12
-1:01
25.2M
25.20 mi13:30:453:04:497:203:00
8:42
+0:30
Finish
26.22 mi13:37:583:12:027:207:13
7:05
-1:37

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

6:36 /mi

Average Pace

7:20 /mi

Slowest Pace

9:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:06:39

35% of race

Time at Steady Pace

1:07:38

35% of race

Time at Slower Pace

57:45

30% of race

Average Pace: 7:19 /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 mi10:47:0321:076:4821:07
6:48
#5641
10K
6.21 mi11:07:3341:376:4220:30
6:36
#4530
15K
9.32 mi11:28:081:02:126:4020:35
6:38
#4094
20K
12.43 mi11:49:061:23:106:4220:58
6:45
#3898
Half
13.11 mi11:53:421:27:466:424:36
6:45
#3909
25K
15.53 mi12:10:201:44:246:4316:38
6:52
#3806
30K
18.64 mi12:33:002:07:046:4922:40
7:18
#3826
20M
20.00 mi12:44:182:18:226:5511:18
8:19
#4223
21M
21.00 mi12:53:242:27:287:019:06
9:06
#4444
35K
21.75 mi12:59:552:33:597:056:31
8:43
#4653
23M
23.00 mi13:11:312:45:357:1211:36
9:16
#4961
24M
24.00 mi13:20:442:54:487:179:13
9:13
#5234
40K
24.85 mi13:27:453:01:497:197:01
8:12
#5216
25.2M
25.20 mi13:30:453:04:497:203:00
8:42
#5177
Finish
26.22 mi13:37:583:12:027:207:13
7:05
#5034
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi56414704703439(Top 13%)172(Top 2%)172(Top 4%)
10K6.21 mi3.10 mi4530+1111286+184286+1843618(Top 14%)187(Top 2%)187(Top 4%)
15K9.32 mi3.11 mi4094+436235+51235+513439(Top 13%)172(Top 2%)172(Top 4%)
20K12.43 mi3.11 mi3898+196214+21214+213521(Top 14%)194(Top 2%)194(Top 4%)
Half13.11 mi0.68 mi3909-11215-1215-14182(Top 16%)288(Top 3%)288(Top 6%)
25K15.53 mi2.42 mi3806+103212+3212+33583(Top 14%)239(Top 2%)239(Top 5%)
30K18.64 mi3.11 mi3826-20230-18230-184198(Top 16%)417(Top 4%)417(Top 9%)
20M20.00 mi1.36 mi4223-397302-72302-728467(Top 33%)2210(Top 20%)2210(Top 47%)
21M21.00 mi1.00 mi4444-221358-56358-569033(Top 35%)2704(Top 25%)2704(Top 58%)
35K21.75 mi0.75 mi4653-209409-51409-5111859(Top 46%)4203(Top 38%)4203(Top 90%)
23M23.00 mi1.25 mi4961-308521-112521-11212445(Top 49%)4633(Top 42%)4633(Top 99%)
24M24.00 mi1.00 mi5234-273618-97618-9713177(Top 52%)5009(Top 46%)5009(Top 107%)
40K24.85 mi0.85 mi5216+18640-22640-226823(Top 27%)2025(Top 19%)2025(Top 43%)
25.2M25.20 mi0.35 mi5177+39653-13653-135272(Top 21%)1375(Top 13%)1375(Top 30%)
Finish26.22 mi1.02 mi5034+143631+22631+223507(Top 14%)628(Top 6%)628(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3439

Females

172

F18-39

172

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3618

Females

187

F18-39

187

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3439

Females

172

F18-39

172

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3521

Females

194

F18-39

194

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4182

Females

288

F18-39

288

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3583

Females

239

F18-39

239

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4198

Females

417

F18-39

417

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

8467

Females

2210

F18-39

2210

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

9033

Females

2704

F18-39

2704

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

11859

Females

4203

F18-39

4203

35K→23M

21.8 - 23.0 mi

Top 49%
×5stories
+23ft-63ft

Overall

12445

Females

4633

F18-39

4633

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

13177

Females

5009

F18-39

5009

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

6823

Females

2025

F18-39

2025

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5272

Females

1375

F18-39

1375

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3507

Females

628

F18-39

628

Passing Analysis

Category:
Athletes Passed
2621
Passed By
2014
Net Change
+607
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5641
5K → 10K11143+1111#5641#4530
10K → 15K4459+436#4530#4094
15K → 20K23842+196#4094#3898
20K → Half2435-11#3898#3909
Half → 25K16663+103#3909#3806
25K → 30K189209-20#3806#3826
30K → 20M34431-397#3826#4223
20M → 21M39260-221#4223#4444
21M → 35K18227-209#4444#4653
35K → 23M29337-308#4653#4961
23M → 24M21294-273#4961#5234
24M → 40K9274+18#5234#5216
40K → 25.2M6021+39#5216#5177
25.2M → Finish1529+143#5177#5034
TOTALS26212014+607
📊

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