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BOSTON MARATHON 2023

Leah Macaulay

Bib: 16218•F

VT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 38%
Gender (Female)
#0 / 11423
Top 19%
Division (F18-39)
#0 / 4884
Top 34%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:19
Rank: #9691
Start → 5K
23:19 | 7:30/mi
10K· 6.21 mi
47:03
Rank: #10665 (-974)
5K → 10K
23:44 | 7:38/mi
15K· 9.32 mi
1:11:42
Rank: #11722 (-1057)
10K → 15K
24:39 | 7:56/mi
20K· 12.43 mi
1:36:27
Rank: #12056 (-334)
15K → 20K
24:45 | 7:58/mi
Half· 13.11 mi
1:41:42
Rank: #12041 (+15)
20K → Half
5:15 | 7:42/mi
25K· 15.53 mi
2:00:40
Rank: #11876 (+165)
Half → 25K
18:58 | 7:49/mi
30K· 18.64 mi
2:25:08
Rank: #11492 (+384)
25K → 30K
24:28 | 7:53/mi
20M
2:35:55
Rank: #11325 (+167)
30K → 20M
10:47 | 7:56/mi
21M
2:44:20
Rank: #11214 (+111)
20M → 21M
8:25 | 8:25/mi
35K· 21.75 mi
2:49:58
Rank: #11111 (+103)
21M → 35K
5:38 | 7:32/mi
23M
2:59:39
Rank: #10881 (+230)
35K → 23M
9:41 | 7:44/mi
24M
3:07:01
Rank: #10686 (+195)
23M → 24M
7:22 | 7:22/mi
40K· 24.85 mi
3:13:27
Rank: #10503 (+183)
24M → 40K
6:26 | 7:31/mi
25.2M
3:16:10
Rank: #10399 (+104)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
3:23:33
Rank: #10213 (+186)
25.2M → Finish
7:23 | 7:15/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:41:42
Pace7:45 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:41:51
Pace7:46 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:3223:197:3023:19
7:30
-
10K
6.21 mi11:37:1647:037:3423:44
7:38
+0:08
15K
9.32 mi12:01:551:11:427:4224:39
7:56
+0:18
20K
12.43 mi12:26:401:36:277:4624:45
7:58
+0:02
Half
13.11 mi12:31:551:41:427:455:15
7:42
-0:16
25K
15.53 mi12:50:532:00:407:4618:58
7:49
+0:07
30K
18.64 mi13:15:212:25:087:4724:28
7:53
+0:04
20M
20.00 mi13:26:082:35:557:4810:47
7:56
+0:03
21M
21.00 mi13:34:332:44:207:508:25
8:25
+0:29
35K
21.75 mi13:40:112:49:587:495:38
7:32
-0:53
23M
23.00 mi13:49:522:59:397:499:41
7:44
+0:12
24M
24.00 mi13:57:143:07:017:487:22
7:22
-0:22
40K
24.85 mi14:03:403:13:277:476:26
7:31
+0:09
25.2M
25.20 mi14:06:233:16:107:472:43
7:53
+0:22
Finish
26.22 mi14:13:463:23:337:467:23
7:15
-0:38

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

7:15 /mi

Average Pace

7:46 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:08

96% of race

Time at Steady Pace

8:25

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:46 /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 mi11:13:3223:197:3023:19
7:30
#9691
10K
6.21 mi11:37:1647:037:3423:44
7:38
#10665
15K
9.32 mi12:01:551:11:427:4224:39
7:56
#11722
20K
12.43 mi12:26:401:36:277:4624:45
7:58
#12056
Half
13.11 mi12:31:551:41:427:455:15
7:42
#12041
25K
15.53 mi12:50:532:00:407:4618:58
7:49
#11876
30K
18.64 mi13:15:212:25:087:4724:28
7:53
#11492
20M
20.00 mi13:26:082:35:557:4810:47
7:56
#11325
21M
21.00 mi13:34:332:44:207:508:25
8:25
#11214
35K
21.75 mi13:40:112:49:587:495:38
7:32
#11111
23M
23.00 mi13:49:522:59:397:499:41
7:44
#10881
24M
24.00 mi13:57:143:07:017:487:22
7:22
#10686
40K
24.85 mi14:03:403:13:277:476:26
7:31
#10503
25.2M
25.20 mi14:06:233:16:107:472:43
7:53
#10399
Finish
26.22 mi14:13:463:23:337:467:23
7:15
#10213
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi96911703170313851(Top 52%)3991(Top 35%)3991(Top 82%)
10K6.21 mi3.10 mi10665-9742154-4512154-45111690(Top 44%)2690(Top 24%)2690(Top 55%)
15K9.32 mi3.11 mi11722-10572740-5862740-58613851(Top 52%)3991(Top 35%)3991(Top 82%)
20K12.43 mi3.11 mi12056-3342941-2012941-20113152(Top 49%)3622(Top 32%)3622(Top 74%)
Half13.11 mi0.68 mi12041+152938+32938+311866(Top 45%)2818(Top 25%)2818(Top 58%)
25K15.53 mi2.42 mi11876+1652857+812857+8111293(Top 42%)2649(Top 23%)2649(Top 54%)
30K18.64 mi3.11 mi11492+3842683+1742683+1749948(Top 37%)2138(Top 19%)2138(Top 44%)
20M20.00 mi1.36 mi11325+1672610+732610+739814(Top 37%)2156(Top 19%)2156(Top 44%)
21M21.00 mi1.00 mi11214+1112571+392571+399982(Top 37%)2374(Top 21%)2374(Top 49%)
35K21.75 mi0.75 mi11111+1032525+462525+468803(Top 33%)1836(Top 16%)1836(Top 38%)
23M23.00 mi1.25 mi10881+2302440+852440+857990(Top 30%)1587(Top 14%)1587(Top 32%)
24M24.00 mi1.00 mi10686+1952369+712369+716880(Top 26%)1237(Top 11%)1237(Top 25%)
40K24.85 mi0.85 mi10503+1832314+552314+556898(Top 26%)1329(Top 12%)1329(Top 27%)
25.2M25.20 mi0.35 mi10399+1042271+432271+435915(Top 22%)1046(Top 9%)1046(Top 21%)
Finish26.22 mi1.02 mi10213+1862201+702201+706763(Top 25%)1340(Top 12%)1340(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

13851

Females

3991

F18-39

3991

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

11690

Females

2690

F18-39

2690

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

13851

Females

3991

F18-39

3991

15K→20K

9.3 - 12.4 mi

Top 49%
×5stories
+106ft-86ft

Overall

13152

Females

3622

F18-39

3622

20K→Half

12.4 - 13.1 mi

Top 45%
×2stories
+19ft-37ft

Overall

11866

Females

2818

F18-39

2818

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

11293

Females

2649

F18-39

2649

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

9948

Females

2138

F18-39

2138

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

9814

Females

2156

F18-39

2156

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

9982

Females

2374

F18-39

2374

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

8803

Females

1836

F18-39

1836

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

7990

Females

1587

F18-39

1587

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

6880

Females

1237

F18-39

1237

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6898

Females

1329

F18-39

1329

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5915

Females

1046

F18-39

1046

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6763

Females

1340

F18-39

1340

Passing Analysis

Category:
Athletes Passed
2189
Passed By
2709
Net Change
-522
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9691
5K → 10K531025-974#9691#10665
10K → 15K181075-1057#10665#11722
15K → 20K80414-334#11722#12056
20K → Half3520+15#12056#12041
Half → 25K22257+165#12041#11876
25K → 30K41430+384#11876#11492
30K → 20M18316+167#11492#11325
20M → 21M14837+111#11325#11214
21M → 35K1074+103#11214#11111
35K → 23M24010+230#11111#10881
23M → 24M2038+195#10881#10686
24M → 40K1874+183#10686#10503
40K → 25.2M1051+104#10503#10399
25.2M → Finish1948+186#10399#10213
TOTALS21892709-522
📊

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