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BOSTON MARATHON 2023

Mandy Leonardi

Bib: 18235•F

AL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 46%
Gender (Female)
#0 / 11423
Top 29%
Division (F18-39)
#0 / 4884
Top 47%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
7:28/mi
23:13
↑ 97↓ 3451.5%
10K· 6.21 mi
7:21/mi
46:03
↑ 79↓ 1380.4%
15K· 9.32 mi
7:31/mi
1:09:24
↑ 67↓ 78
20K· 12.43 mi
7:41/mi
1:33:15
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:38:31
↑ 19↓ 370.5%
25K· 15.53 mi
7:44/mi
1:57:17
↑ 66↓ 880.2%
30K· 18.64 mi
8:15/mi
2:22:54
↑ 181↓ 1480.2%
20M
8:47/mi
2:34:50
↑ 64↓ 500.2%
21M
9:49/mi
2:44:39
↑ 106↓ 241.6%
35K· 21.75 mi
8:08/mi
2:50:44
↑ 17↓ 861.7%
23M
9:13/mi
3:02:16
↑ 23↓ 630.6%
24M
8:14/mi
3:10:30
↓ 821.3%
40K· 24.85 mi
9:04/mi
3:18:15
↓ 200.3%
25.2M
9:25/mi
3:21:30
↑ 13↓ 160.2%
Finish· 26.22 mi
8:37/mi
3:30:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:31
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:51:46
Pace8:32 /mi
📊Positive Split: 13.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1323:137:2823:13
7:28
-
10K
6.21 mi11:37:0346:037:2522:50
7:21
-0:07
15K
9.32 mi12:00:241:09:247:2723:21
7:31
+0:10
20K
12.43 mi12:24:151:33:157:3023:51
7:41
+0:10
Half
13.11 mi12:29:311:38:317:315:16
7:43
+0:02
25K
15.53 mi12:48:171:57:177:3318:46
7:44
+0:01
30K
18.64 mi13:13:542:22:547:4025:37
8:15
+0:31
20M
20.00 mi13:25:502:34:507:4411:56
8:47
+0:32
21M
21.00 mi13:35:392:44:397:509:49
9:49
+1:02
35K
21.75 mi13:41:442:50:447:516:05
8:08
-1:41
23M
23.00 mi13:53:163:02:167:5511:32
9:13
+1:05
24M
24.00 mi14:01:303:10:307:568:14
8:14
-0:59
40K
24.85 mi14:09:153:18:157:597:45
9:04
+0:50
25.2M
25.20 mi14:12:303:21:308:003:15
9:25
+0:21
Finish
26.22 mi14:21:173:30:178:028:47
8:37
-0:48

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

7:21 /mi

Average Pace

8:02 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:17

56% of race

Time at Steady Pace

39:56

19% of race

Time at Slower Pace

53:04

25% of race

Average Pace: 8:01 /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 mi11:14:1323:137:2823:13
7:28
#9409
10K
6.21 mi11:37:0346:037:2522:50
7:21
#9274
15K
9.32 mi12:00:241:09:247:2723:21
7:31
#9587
20K
12.43 mi12:24:151:33:157:3023:51
7:41
#9864
Half
13.11 mi12:29:311:38:317:315:16
7:43
#9979
25K
15.53 mi12:48:171:57:177:3318:46
7:44
#10045
30K
18.64 mi13:13:542:22:547:4025:37
8:15
#10489
20M
20.00 mi13:25:502:34:507:4411:56
8:47
#10863
21M
21.00 mi13:35:392:44:397:509:49
9:49
#11333
35K
21.75 mi13:41:442:50:447:516:05
8:08
#11398
23M
23.00 mi13:53:163:02:167:5511:32
9:13
#11849
24M
24.00 mi14:01:303:10:307:568:14
8:14
#11896
40K
24.85 mi14:09:153:18:157:597:45
9:04
#12101
25.2M
25.20 mi14:12:303:21:308:003:15
9:25
#12138
Finish
26.22 mi14:21:173:30:178:028:47
8:37
#12354
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi94091587158710324(Top 39%)1996(Top 17%)1996(Top 41%)
10K6.21 mi3.10 mi9274+1351528+591528+599248(Top 35%)1521(Top 13%)1521(Top 31%)
15K9.32 mi3.11 mi9587-3131654-1261654-12610324(Top 39%)1996(Top 17%)1996(Top 41%)
20K12.43 mi3.11 mi9864-2771779-1251779-12510754(Top 40%)2291(Top 20%)2291(Top 47%)
Half13.11 mi0.68 mi9979-1151830-511830-5112114(Top 46%)2992(Top 26%)2992(Top 61%)
25K15.53 mi2.42 mi10045-661883-531883-5310646(Top 40%)2316(Top 20%)2316(Top 47%)
30K18.64 mi3.11 mi10489-4442149-2662149-26612650(Top 48%)3554(Top 31%)3554(Top 73%)
20M20.00 mi1.36 mi10863-3742363-2142363-21415319(Top 58%)5168(Top 45%)5168(Top 106%)
21M21.00 mi1.00 mi11333-4702638-2752638-27517316(Top 65%)6373(Top 56%)6373(Top 130%)
35K21.75 mi0.75 mi11398-652687-492687-4913014(Top 49%)4000(Top 35%)4000(Top 82%)
23M23.00 mi1.25 mi11849-4512958-2712958-27117118(Top 64%)6347(Top 56%)6347(Top 130%)
24M24.00 mi1.00 mi11896-473013-553013-5512843(Top 48%)4042(Top 35%)4042(Top 83%)
40K24.85 mi0.85 mi12101-2053159-1463159-14616483(Top 62%)6113(Top 54%)6113(Top 125%)
25.2M25.20 mi0.35 mi12138-373181-223181-2214832(Top 56%)5190(Top 45%)5190(Top 106%)
Finish26.22 mi1.02 mi12354-2163323-1423323-14216083(Top 60%)5855(Top 51%)5855(Top 120%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

10324

Females

1996

F18-39

1996

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

9248

Females

1521

F18-39

1521

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

10324

Females

1996

F18-39

1996

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

10754

Females

2291

F18-39

2291

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

12114

Females

2992

F18-39

2992

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

10646

Females

2316

F18-39

2316

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

12650

Females

3554

F18-39

3554

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

15319

Females

5168

F18-39

5168

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

17316

Females

6373

F18-39

6373

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

13014

Females

4000

F18-39

4000

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

17118

Females

6347

F18-39

6347

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

12843

Females

4042

F18-39

4042

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16483

Females

6113

F18-39

6113

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14832

Females

5190

F18-39

5190

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

16083

Females

5855

F18-39

5855

Passing Analysis

Category:
Athletes Passed
875*
Passed By
3819
Net Change
-2945
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9409
5K → 10K349214+135#9409#9274
10K → 15K75388-313#9274#9587
15K → 20K81358-277#9587#9864
20K → Half5120-115#9864#9979
Half → 25K99164-66#9979#10045
25K → 30K67511-444#10045#10489
30K → 20M18*392-374#10489#10863
20M → 21M15485-470#10863#11333
21M → 35K3297-65#11333#11398
35K → 23M21472-451#11398#11849
23M → 24M4996-47#11849#11896
24M → 40K22227-205#11896#12101
40K → 25.2M1653-37#12101#12138
25.2M → Finish26242-216#12138#12354
TOTALS875*3819-2945

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

📊

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