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BOSTON MARATHON 2024

Samantha Renzi

Bib: 12096•F

CA

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 23%
Gender (Female)
#0 / 10924
Top 8%
Division (F18-39)
#0 / 4660
Top 15%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:13
Rank: #10521
Start → 5K
23:13 | 7:28/mi
10K· 6.21 mi
45:54
Rank: #9536 (+985)
5K → 10K
22:41 | 7:18/mi
15K· 9.32 mi
1:08:25
Rank: #8911 (+625)
10K → 15K
22:31 | 7:15/mi
20K· 12.43 mi
1:31:26
Rank: #8547 (+364)
15K → 20K
23:01 | 7:25/mi
Half· 13.11 mi
1:36:22
Rank: #8477 (+70)
20K → Half
4:56 | 7:14/mi
25K· 15.53 mi
1:54:09
Rank: #7962 (+515)
Half → 25K
17:47 | 7:20/mi
30K· 18.64 mi
2:17:16
Rank: #7217 (+745)
25K → 30K
23:07 | 7:26/mi
20M
2:27:27
Rank: #6888 (+329)
30K → 20M
10:11 | 7:30/mi
21M
2:35:29
Rank: #6598 (+290)
20M → 21M
8:02 | 8:02/mi
35K· 21.75 mi
2:40:58
Rank: #6439 (+159)
21M → 35K
5:29 | 7:20/mi
23M
2:50:28
Rank: #6153 (+286)
35K → 23M
9:30 | 7:35/mi
24M
2:58:10
Rank: #6032 (+121)
23M → 24M
7:42 | 7:42/mi
40K· 24.85 mi
3:04:39
Rank: #5855 (+177)
24M → 40K
6:29 | 7:35/mi
25.2M
3:07:25
Rank: #5762 (+93)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
3:15:19
Rank: #5756 (+6)
25.2M → Finish
7:54 | 7:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:22
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:38:57
Pace7:33 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4523:137:2823:13
7:28
-
10K
6.21 mi11:14:2645:547:2322:41
7:18
-0:10
15K
9.32 mi11:36:571:08:257:2022:31
7:15
-0:03
20K
12.43 mi11:59:581:31:267:2123:01
7:25
+0:10
Half
13.11 mi12:04:541:36:227:214:56
7:14
-0:11
25K
15.53 mi12:22:411:54:097:2117:47
7:20
+0:06
30K
18.64 mi12:45:482:17:167:2223:07
7:26
+0:06
20M
20.00 mi12:55:592:27:277:2210:11
7:30
+0:04
21M
21.00 mi13:04:012:35:297:248:02
8:02
+0:32
35K
21.75 mi13:09:302:40:587:245:29
7:20
-0:42
23M
23.00 mi13:19:002:50:287:259:30
7:35
+0:15
24M
24.00 mi13:26:422:58:107:257:42
7:42
+0:07
40K
24.85 mi13:33:113:04:397:266:29
7:35
-0:07
25.2M
25.20 mi13:35:573:07:257:262:46
8:01
+0:26
Finish
26.22 mi13:43:513:15:197:277:54
7:45
-0:16

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

7:14 /mi

Average Pace

7:27 /mi

Slowest Pace

8:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:04:31

94% of race

Time at Steady Pace

10:48

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:27 /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 mi10:51:4523:137:2823:13
7:28
#10521
10K
6.21 mi11:14:2645:547:2322:41
7:18
#9536
15K
9.32 mi11:36:571:08:257:2022:31
7:15
#8911
20K
12.43 mi11:59:581:31:267:2123:01
7:25
#8547
Half
13.11 mi12:04:541:36:227:214:56
7:14
#8477
25K
15.53 mi12:22:411:54:097:2117:47
7:20
#7962
30K
18.64 mi12:45:482:17:167:2223:07
7:26
#7217
20M
20.00 mi12:55:592:27:277:2210:11
7:30
#6888
21M
21.00 mi13:04:012:35:297:248:02
8:02
#6598
35K
21.75 mi13:09:302:40:587:245:29
7:20
#6439
23M
23.00 mi13:19:002:50:287:259:30
7:35
#6153
24M
24.00 mi13:26:422:58:107:257:42
7:42
#6032
40K
24.85 mi13:33:113:04:397:266:29
7:35
#5855
25.2M
25.20 mi13:35:573:07:257:262:46
8:01
#5762
Finish
26.22 mi13:43:513:15:197:277:54
7:45
#5756
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10521228922897814(Top 31%)1184(Top 11%)1184(Top 25%)
10K6.21 mi3.10 mi9536+9851834+4551834+4558695(Top 34%)1505(Top 14%)1505(Top 32%)
15K9.32 mi3.11 mi8911+6251598+2361598+2367814(Top 31%)1184(Top 11%)1184(Top 25%)
20K12.43 mi3.11 mi8547+3641477+1211477+1217696(Top 30%)1258(Top 12%)1258(Top 27%)
Half13.11 mi0.68 mi8477+701455+221455+227209(Top 28%)1057(Top 10%)1057(Top 23%)
25K15.53 mi2.42 mi7962+5151276+1791276+1796039(Top 24%)822(Top 8%)822(Top 18%)
30K18.64 mi3.11 mi7217+7451062+2141062+2144822(Top 19%)589(Top 5%)589(Top 13%)
20M20.00 mi1.36 mi6888+329990+72990+724303(Top 17%)523(Top 5%)523(Top 11%)
21M21.00 mi1.00 mi6598+290944+46944+464319(Top 17%)652(Top 6%)652(Top 14%)
35K21.75 mi0.75 mi6439+159916+28916+284322(Top 17%)636(Top 6%)636(Top 14%)
23M23.00 mi1.25 mi6153+286876+40876+403973(Top 16%)599(Top 5%)599(Top 13%)
24M24.00 mi1.00 mi6032+121856+20856+205050(Top 20%)1108(Top 10%)1108(Top 24%)
40K24.85 mi0.85 mi5855+177834+22834+223857(Top 15%)727(Top 7%)727(Top 16%)
25.2M25.20 mi0.35 mi5762+93822+12822+122861(Top 11%)439(Top 4%)439(Top 9%)
Finish26.22 mi1.02 mi5756+6842-20842-207072(Top 28%)2139(Top 20%)2139(Top 46%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21stories
+97ft-345ft

Overall

7814

Females

1184

F18-39

1184

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

8695

Females

1505

F18-39

1505

10K→15K

6.2 - 9.3 mi

Top 31%
×3stories
+67ft-78ft

Overall

7814

Females

1184

F18-39

1184

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

7696

Females

1258

F18-39

1258

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

7209

Females

1057

F18-39

1057

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6039

Females

822

F18-39

822

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

4822

Females

589

F18-39

589

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4303

Females

523

F18-39

523

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4319

Females

652

F18-39

652

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4322

Females

636

F18-39

636

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

3973

Females

599

F18-39

599

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5050

Females

1108

F18-39

1108

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

3857

Females

727

F18-39

727

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

2861

Females

439

F18-39

439

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7072

Females

2139

F18-39

2139

Passing Analysis

Category:
Athletes Passed
4956*
Passed By
191
Net Change
+4765
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10521
5K → 10K1005*20+985#10521#9536
10K → 15K6338+625#9536#8911
15K → 20K39935+364#8911#8547
20K → Half744+70#8547#8477
Half → 25K5194+515#8477#7962
25K → 30K7483+745#7962#7217
30K → 20M3334+329#7217#6888
20M → 21M2999+290#6888#6598
21M → 35K1656+159#6598#6439
35K → 23M2926+286#6439#6153
23M → 24M14524+121#6153#6032
24M → 40K1858+177#6032#5855
40K → 25.2M930+93#5855#5762
25.2M → Finish6660+6#5762#5756
TOTALS4956*191+4765

* 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