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BOSTON MARATHON 2023

Heidi Mccarty

Bib: 10842•F

WY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 42%
Gender (Female)
#0 / 11423
Top 23%
Division (F18-39)
#0 / 4884
Top 39%
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
7:38/mi
23:42
↑ 97↓ 3451.5%
10K· 6.21 mi
7:53/mi
48:11
↑ 79↓ 1380.4%
15K· 9.32 mi
7:30/mi
1:11:30
↑ 67↓ 78
20K· 12.43 mi
7:51/mi
1:35:53
↑ 106↓ 860.1%
Half· 13.11 mi
7:31/mi
1:41:01
↑ 19↓ 370.5%
25K· 15.53 mi
7:53/mi
2:00:07
↑ 66↓ 880.2%
30K· 18.64 mi
8:00/mi
2:24:59
↑ 181↓ 1480.2%
20M
8:10/mi
2:36:05
↑ 64↓ 500.2%
21M
8:38/mi
2:44:43
↑ 106↓ 241.6%
35K· 21.75 mi
8:03/mi
2:50:44
↑ 17↓ 861.7%
23M
8:05/mi
3:00:51
↑ 23↓ 630.6%
24M
7:48/mi
3:08:39
↓ 821.3%
40K· 24.85 mi
8:03/mi
3:15:32
↓ 200.3%
25.2M
8:33/mi
3:18:29
↑ 13↓ 160.2%
Finish· 26.22 mi
7:46/mi
3:26:24
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:01
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time1:45:23
Pace8:02 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5723:427:3823:42
7:38
-
10K
6.21 mi11:14:2648:117:4524:29
7:53
+0:15
15K
9.32 mi11:37:451:11:307:4023:19
7:30
-0:23
20K
12.43 mi12:02:081:35:537:4324:23
7:51
+0:21
Half
13.11 mi12:07:161:41:017:425:08
7:31
-0:20
25K
15.53 mi12:26:222:00:077:4419:06
7:53
+0:22
30K
18.64 mi12:51:142:24:597:4724:52
8:00
+0:07
20M
20.00 mi13:02:202:36:057:4811:06
8:10
+0:10
21M
21.00 mi13:10:582:44:437:518:38
8:38
+0:28
35K
21.75 mi13:16:592:50:447:516:01
8:03
-0:35
23M
23.00 mi13:27:063:00:517:5210:07
8:05
+0:02
24M
24.00 mi13:34:543:08:397:527:48
7:48
-0:17
40K
24.85 mi13:41:473:15:327:526:53
8:03
+0:15
25.2M
25.20 mi13:44:443:18:297:532:57
8:33
+0:30
Finish
26.22 mi13:52:393:26:247:537:55
7:46
-0:47

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

7:30 /mi

Average Pace

7:53 /mi

Slowest Pace

8:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:49

94% of race

Time at Steady Pace

11:35

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:52 /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 mi10:49:5723:427:3823:42
7:38
#10819
10K
6.21 mi11:14:2648:117:4524:29
7:53
#12318
15K
9.32 mi11:37:451:11:307:4023:19
7:30
#11549
20K
12.43 mi12:02:081:35:537:4324:23
7:51
#11655
Half
13.11 mi12:07:161:41:017:425:08
7:31
#11590
25K
15.53 mi12:26:222:00:077:4419:06
7:53
#11544
30K
18.64 mi12:51:142:24:597:4724:52
8:00
#11428
20M
20.00 mi13:02:202:36:057:4811:06
8:10
#11395
21M
21.00 mi13:10:582:44:437:518:38
8:38
#11358
35K
21.75 mi13:16:592:50:447:516:01
8:03
#11393
23M
23.00 mi13:27:063:00:517:5210:07
8:05
#11326
24M
24.00 mi13:34:543:08:397:527:48
7:48
#11249
40K
24.85 mi13:41:473:15:327:526:53
8:03
#11184
25.2M
25.20 mi13:44:443:18:297:532:57
8:33
#11144
Finish
26.22 mi13:52:393:26:247:537:55
7:46
#11101
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi108192236223610235(Top 38%)1956(Top 17%)1956(Top 40%)
10K6.21 mi3.10 mi12318-14993048-8123048-81213810(Top 52%)3926(Top 34%)3926(Top 80%)
15K9.32 mi3.11 mi11549+7692633+4152633+41510235(Top 38%)1956(Top 17%)1956(Top 40%)
20K12.43 mi3.11 mi11655-1062711-782711-7812156(Top 46%)3058(Top 27%)3058(Top 63%)
Half13.11 mi0.68 mi11590+652679+322679+3210490(Top 39%)2145(Top 19%)2145(Top 44%)
25K15.53 mi2.42 mi11544+462661+182661+1811748(Top 44%)2922(Top 26%)2922(Top 60%)
30K18.64 mi3.11 mi11428+1162648+132648+1310950(Top 41%)2611(Top 23%)2611(Top 53%)
20M20.00 mi1.36 mi11395+332652-42652-411478(Top 43%)2984(Top 26%)2984(Top 61%)
21M21.00 mi1.00 mi11358+372651+12651+111274(Top 42%)3013(Top 26%)3013(Top 62%)
35K21.75 mi0.75 mi11393-352682-312682-3112437(Top 47%)3656(Top 32%)3656(Top 75%)
23M23.00 mi1.25 mi11326+672674+82674+810331(Top 39%)2675(Top 23%)2675(Top 55%)
24M24.00 mi1.00 mi11249+772651+232651+239828(Top 37%)2513(Top 22%)2513(Top 51%)
40K24.85 mi0.85 mi11184+652643+82643+810395(Top 39%)2837(Top 25%)2837(Top 58%)
25.2M25.20 mi0.35 mi11144+402636+72636+79932(Top 37%)2648(Top 23%)2648(Top 54%)
Finish26.22 mi1.02 mi11101+432639-32639-310469(Top 39%)2922(Top 26%)2922(Top 60%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10235

Females

1956

F18-39

1956

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

13810

Females

3926

F18-39

3926

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10235

Females

1956

F18-39

1956

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

12156

Females

3058

F18-39

3058

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

10490

Females

2145

F18-39

2145

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

11748

Females

2922

F18-39

2922

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10950

Females

2611

F18-39

2611

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

11478

Females

2984

F18-39

2984

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

11274

Females

3013

F18-39

3013

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

12437

Females

3656

F18-39

3656

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

10331

Females

2675

F18-39

2675

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

9828

Females

2513

F18-39

2513

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10395

Females

2837

F18-39

2837

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9932

Females

2648

F18-39

2648

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

10469

Females

2922

F18-39

2922

Passing Analysis

Category:
Athletes Passed
2102
Passed By
2384
Net Change
-282
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10819
5K → 10K291528-1499#10819#12318
10K → 15K7789+769#12318#11549
15K → 20K121227-106#11549#11655
20K → Half705+65#11655#11590
Half → 25K150104+46#11590#11544
25K → 30K236120+116#11544#11428
30K → 20M10067+33#11428#11395
20M → 21M10770+37#11395#11358
21M → 35K4378-35#11358#11393
35K → 23M12457+67#11393#11326
23M → 24M10326+77#11326#11249
24M → 40K9328+65#11249#11184
40K → 25.2M5414+40#11184#11144
25.2M → Finish9451+43#11144#11101
TOTALS21022384-282
📊

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