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BOSTON MARATHON 2023

Megan Leahy

Bib: 14821•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 33%
Gender (Female)
#0 / 11423
Top 14%
Masters (Masters Women)
#0 / 6539
Top 5%
Division (F45-49)
#0 / 1817
Top 5%
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
7:42/mi
23:56
↑ 97↓ 3451.5%
10K· 6.21 mi
7:33/mi
47:23
↑ 79↓ 1380.4%
15K· 9.32 mi
7:25/mi
1:10:26
↑ 67↓ 78
20K· 12.43 mi
7:30/mi
1:33:44
↑ 106↓ 860.1%
Half· 13.11 mi
7:24/mi
1:38:47
↑ 19↓ 370.5%
25K· 15.53 mi
7:34/mi
1:57:07
↑ 66↓ 880.2%
30K· 18.64 mi
7:35/mi
2:20:42
↑ 181↓ 1480.2%
20M
7:42/mi
2:31:10
↑ 64↓ 500.2%
21M
8:16/mi
2:39:26
↑ 106↓ 241.6%
35K· 21.75 mi
7:21/mi
2:44:56
↑ 17↓ 861.7%
23M
7:32/mi
2:54:22
↑ 23↓ 630.6%
24M
7:33/mi
3:01:55
↓ 821.3%
40K· 24.85 mi
7:42/mi
3:08:30
↓ 200.3%
25.2M
8:16/mi
3:11:21
↑ 13↓ 160.2%
Finish· 26.22 mi
7:28/mi
3:18:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:47
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:40:11
Pace7:39 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2123:567:4223:56
7:42
-
10K
6.21 mi11:16:4847:237:3823:27
7:33
-0:09
15K
9.32 mi11:39:511:10:267:3323:03
7:25
-0:08
20K
12.43 mi12:03:091:33:447:3323:18
7:30
+0:05
Half
13.11 mi12:08:121:38:477:325:03
7:24
-0:06
25K
15.53 mi12:26:321:57:077:3218:20
7:34
+0:10
30K
18.64 mi12:50:072:20:427:3323:35
7:35
+0:01
20M
20.00 mi13:00:352:31:107:3310:28
7:42
+0:07
21M
21.00 mi13:08:512:39:267:368:16
8:16
+0:34
35K
21.75 mi13:14:212:44:567:355:30
7:21
-0:55
23M
23.00 mi13:23:472:54:227:359:26
7:32
+0:11
24M
24.00 mi13:31:203:01:557:357:33
7:33
+0:01
40K
24.85 mi13:37:553:08:307:356:35
7:42
+0:09
25.2M
25.20 mi13:40:463:11:217:362:51
8:16
+0:34
Finish
26.22 mi13:48:233:18:587:367:37
7:28
-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

7:36 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:51

94% of race

Time at Steady Pace

11:07

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:35 /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 mi10:53:2123:567:4223:56
7:42
#11483
10K
6.21 mi11:16:4847:237:3823:27
7:33
#11149
15K
9.32 mi11:39:511:10:267:3323:03
7:25
#10560
20K
12.43 mi12:03:091:33:447:3323:18
7:30
#10220
Half
13.11 mi12:08:121:38:477:325:03
7:24
#10153
25K
15.53 mi12:26:321:57:077:3218:20
7:34
#9971
30K
18.64 mi12:50:072:20:427:3323:35
7:35
#9572
20M
20.00 mi13:00:352:31:107:3310:28
7:42
#9435
21M
21.00 mi13:08:512:39:267:368:16
8:16
#9362
35K
21.75 mi13:14:212:44:567:355:30
7:21
#9273
23M
23.00 mi13:23:472:54:227:359:26
7:32
#9091
24M
24.00 mi13:31:203:01:557:357:33
7:33
#9024
40K
24.85 mi13:37:553:08:307:356:35
7:42
#8954
25.2M
25.20 mi13:40:463:11:217:362:51
8:16
#8929
Finish
26.22 mi13:48:233:18:587:367:37
7:28
#8870
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi11483257925799520(Top 36%)1626(Top 14%)1626(Top 89%)
10K6.21 mi3.10 mi11149+3342404+1752404+17510862(Top 41%)2236(Top 20%)2236(Top 123%)
15K9.32 mi3.11 mi10560+5892096+3082096+3089520(Top 36%)1626(Top 14%)1626(Top 89%)
20K12.43 mi3.11 mi10220+3401935+1611935+1619314(Top 35%)1606(Top 14%)1606(Top 88%)
Half13.11 mi0.68 mi10153+671911+241911+249482(Top 36%)1662(Top 15%)1662(Top 91%)
25K15.53 mi2.42 mi9971+1821837+741837+749259(Top 35%)1659(Top 15%)1659(Top 91%)
30K18.64 mi3.11 mi9572+3991707+1301707+1307895(Top 30%)1267(Top 11%)1267(Top 70%)
20M20.00 mi1.36 mi9435+1371682+251682+258231(Top 31%)1490(Top 13%)1490(Top 82%)
21M21.00 mi1.00 mi9362+731676+61676+69042(Top 34%)1939(Top 17%)1939(Top 107%)
35K21.75 mi0.75 mi9273+891661+151661+157529(Top 28%)1321(Top 12%)1321(Top 73%)
23M23.00 mi1.25 mi9091+1821610+511610+516658(Top 25%)1049(Top 9%)1049(Top 58%)
24M24.00 mi1.00 mi9024+671604+61604+68071(Top 30%)1704(Top 15%)1704(Top 94%)
40K24.85 mi0.85 mi8954+701595+91595+98005(Top 30%)1743(Top 15%)1743(Top 96%)
25.2M25.20 mi0.35 mi8929+25159515958147(Top 31%)1874(Top 16%)1874(Top 103%)
Finish26.22 mi1.02 mi8870+591586+91586+98385(Top 31%)1986(Top 17%)1986(Top 109%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

9520

Females

1626

F45-49

1626

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

10862

Females

2236

F45-49

2236

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

9520

Females

1626

F45-49

1626

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9314

Females

1606

F45-49

1606

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

9482

Females

1662

F45-49

1662

Half→25K

13.1 - 15.5 mi

Top 35%
×4story building
+66ft-88ft

Overall

9259

Females

1659

F45-49

1659

25K→30K

15.5 - 18.6 mi

Top 30%
×9story building
+181ft-148ft

Overall

7895

Females

1267

F45-49

1267

30K→20M

18.6 - 20.0 mi

Top 31%
×5story building
+64ft-50ft

Overall

8231

Females

1490

F45-49

1490

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

9042

Females

1939

F45-49

1939

21M→35K

21.0 - 21.8 mi

Top 28%
×7story building
+17ft-86ft

Overall

7529

Females

1321

F45-49

1321

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

6658

Females

1049

F45-49

1049

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

8071

Females

1704

F45-49

1704

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8005

Females

1743

F45-49

1743

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8147

Females

1874

F45-49

1874

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8385

Females

1986

F45-49

1986

Passing Analysis

Category:
Athletes Passed
3059*
Passed By
446
Net Change
+2613
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11483
5K → 10K490156+334#11483#11149
10K → 15K61122+589#11149#10560
15K → 20K359*19+340#10560#10220
20K → Half7912+67#10220#10153
Half → 25K228*46+182#10153#9971
25K → 30K413*14+399#9971#9572
30K → 20M16023+137#9572#9435
20M → 21M11744+73#9435#9362
21M → 35K9910+89#9362#9273
35K → 23M19412+182#9273#9091
23M → 24M9528+67#9091#9024
24M → 40K8515+70#9024#8954
40K → 25.2M4015+25#8954#8929
25.2M → Finish8930+59#8929#8870
TOTALS3059*446+2613

* 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