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BOSTON MARATHON 2024

Mary Lazzaro

Bib: 15038•F

IL

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 24%
Gender (Female)
#0 / 10924
Top 9%
Division (F18-39)
#0 / 4660
Top 18%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:12
Rank: #10503
Start → 5K
23:12 | 7:28/mi
10K· 6.21 mi
46:21
Rank: #10139 (+364)
5K → 10K
23:09 | 7:27/mi
15K· 9.32 mi
1:09:33
Rank: #9854 (+285)
10K → 15K
23:12 | 7:28/mi
20K· 12.43 mi
1:32:55
Rank: #9452 (+402)
15K → 20K
23:22 | 7:31/mi
Half· 13.11 mi
1:38:00
Rank: #9398 (+54)
20K → Half
5:05 | 7:27/mi
25K· 15.53 mi
1:56:22
Rank: #9000 (+398)
Half → 25K
18:22 | 7:35/mi
30K· 18.64 mi
2:20:04
Rank: #8245 (+755)
25K → 30K
23:42 | 7:38/mi
20M
2:30:37
Rank: #7945 (+300)
30K → 20M
10:33 | 7:46/mi
21M
2:38:40
Rank: #7612 (+333)
20M → 21M
8:03 | 8:03/mi
35K· 21.75 mi
2:44:12
Rank: #7422 (+190)
21M → 35K
5:32 | 7:24/mi
23M
2:53:42
Rank: #7059 (+363)
35K → 23M
9:30 | 7:35/mi
24M
3:01:02
Rank: #6780 (+279)
23M → 24M
7:20 | 7:20/mi
40K· 24.85 mi
3:07:22
Rank: #6529 (+251)
24M → 40K
6:20 | 7:24/mi
25.2M
3:10:13
Rank: #6439 (+90)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:17:23
Rank: #6237 (+202)
25.2M → Finish
7:10 | 7:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:00
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:39:23
Pace7:35 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:4823:127:2823:12
7:28
-
10K
6.21 mi11:19:5746:217:2823:09
7:27
-0:01
15K
9.32 mi11:43:091:09:337:2823:12
7:28
+0:01
20K
12.43 mi12:06:311:32:557:2923:22
7:31
+0:03
Half
13.11 mi12:11:361:38:007:295:05
7:27
-0:04
25K
15.53 mi12:29:581:56:227:2918:22
7:35
+0:08
30K
18.64 mi12:53:402:20:047:3123:42
7:38
+0:03
20M
20.00 mi13:04:132:30:377:3210:33
7:46
+0:08
21M
21.00 mi13:12:162:38:407:338:03
8:03
+0:17
35K
21.75 mi13:17:482:44:127:335:32
7:24
-0:39
23M
23.00 mi13:27:182:53:427:339:30
7:35
+0:11
24M
24.00 mi13:34:383:01:027:337:20
7:20
-0:15
40K
24.85 mi13:40:583:07:227:326:20
7:24
+0:04
25.2M
25.20 mi13:43:493:10:137:332:51
8:16
+0:52
Finish
26.22 mi13:50:593:17:237:327:10
7:02
-1:14

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

7:02 /mi

Average Pace

7:32 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:55:56

89% of race

Time at Steady Pace

21:27

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:32 /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 mi10:56:4823:127:2823:12
7:28
#10503
10K
6.21 mi11:19:5746:217:2823:09
7:27
#10139
15K
9.32 mi11:43:091:09:337:2823:12
7:28
#9854
20K
12.43 mi12:06:311:32:557:2923:22
7:31
#9452
Half
13.11 mi12:11:361:38:007:295:05
7:27
#9398
25K
15.53 mi12:29:581:56:227:2918:22
7:35
#9000
30K
18.64 mi12:53:402:20:047:3123:42
7:38
#8245
20M
20.00 mi13:04:132:30:377:3210:33
7:46
#7945
21M
21.00 mi13:12:162:38:407:338:03
8:03
#7612
35K
21.75 mi13:17:482:44:127:335:32
7:24
#7422
23M
23.00 mi13:27:182:53:427:339:30
7:35
#7059
24M
24.00 mi13:34:383:01:027:337:20
7:20
#6780
40K
24.85 mi13:40:583:07:227:326:20
7:24
#6529
25.2M
25.20 mi13:43:493:10:137:332:51
8:16
#6439
Finish
26.22 mi13:50:593:17:237:327:10
7:02
#6237
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10503228822889432(Top 37%)1897(Top 17%)1897(Top 41%)
10K6.21 mi3.10 mi10139+3642128+1602128+1609886(Top 39%)2054(Top 19%)2054(Top 44%)
15K9.32 mi3.11 mi9854+2852018+1102018+1109432(Top 37%)1897(Top 17%)1897(Top 41%)
20K12.43 mi3.11 mi9452+4021870+1481870+1488543(Top 33%)1606(Top 15%)1606(Top 34%)
Half13.11 mi0.68 mi9398+541846+241846+248841(Top 35%)1760(Top 16%)1760(Top 38%)
25K15.53 mi2.42 mi9000+3981715+1311715+1317500(Top 29%)1369(Top 13%)1369(Top 29%)
30K18.64 mi3.11 mi8245+7551494+2211494+2215770(Top 23%)904(Top 8%)904(Top 19%)
20M20.00 mi1.36 mi7945+3001414+801414+805560(Top 22%)961(Top 9%)961(Top 21%)
21M21.00 mi1.00 mi7612+3331326+881326+884382(Top 17%)678(Top 6%)678(Top 15%)
35K21.75 mi0.75 mi7422+1901272+541272+544657(Top 18%)759(Top 7%)759(Top 16%)
23M23.00 mi1.25 mi7059+3631181+911181+913980(Top 16%)606(Top 6%)606(Top 13%)
24M24.00 mi1.00 mi6780+2791121+601121+603513(Top 14%)521(Top 5%)521(Top 11%)
40K24.85 mi0.85 mi6529+2511074+471074+473199(Top 13%)501(Top 5%)501(Top 11%)
25.2M25.20 mi0.35 mi6439+901060+141060+143686(Top 14%)727(Top 7%)727(Top 16%)
Finish26.22 mi1.02 mi6237+2021023+371023+373316(Top 13%)573(Top 5%)573(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

9432

Females

1897

F18-39

1897

5K→10K

3.1 - 6.2 mi

Top 39%
×5stories
+79ft-138ft

Overall

9886

Females

2054

F18-39

2054

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

9432

Females

1897

F18-39

1897

15K→20K

9.3 - 12.4 mi

Top 33%
×5stories
+106ft-86ft

Overall

8543

Females

1606

F18-39

1606

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

8841

Females

1760

F18-39

1760

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

7500

Females

1369

F18-39

1369

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

5770

Females

904

F18-39

904

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

5560

Females

961

F18-39

961

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4382

Females

678

F18-39

678

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4657

Females

759

F18-39

759

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

3980

Females

606

F18-39

606

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3513

Females

521

F18-39

521

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3199

Females

501

F18-39

501

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3686

Females

727

F18-39

727

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3316

Females

573

F18-39

573

Passing Analysis

Category:
Athletes Passed
4581*
Passed By
315
Net Change
+4266
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10503
5K → 10K480*116+364#10503#10139
10K → 15K362*77+285#10139#9854
15K → 20K45048+402#9854#9452
20K → Half7319+54#9452#9398
Half → 25K42022+398#9398#9000
25K → 30K7638+755#9000#8245
30K → 20M3055+300#8245#7945
20M → 21M3407+333#7945#7612
21M → 35K1911+190#7612#7422
35K → 23M3685+363#7422#7059
23M → 24M2801+279#7059#6780
24M → 40K2543+251#6780#6529
40K → 25.2M911+90#6529#6439
25.2M → Finish2042+202#6439#6237
TOTALS4581*315+4266

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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