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BOSTON MARATHON 2023

Heidi Parkhurst

Bib: 23946•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:54
Rank: #20368
Start → 5K
27:54 | 8:59/mi
10K· 6.21 mi
56:18
Rank: #20905 (-537)
5K → 10K
28:24 | 9:08/mi
15K· 9.32 mi
1:25:36
Rank: #21307 (-402)
10K → 15K
29:18 | 9:26/mi
20K· 12.43 mi
1:54:57
Rank: #21358 (-51)
15K → 20K
29:21 | 9:27/mi
Half· 13.11 mi
2:01:08
Rank: #21315 (+43)
20K → Half
6:11 | 9:04/mi
25K· 15.53 mi
2:25:20
Rank: #21476 (-161)
Half → 25K
24:12 | 9:59/mi
30K· 18.64 mi
2:57:46
Rank: #21582 (-106)
25K → 30K
32:26 | 10:26/mi
20M
3:11:49
Rank: #21571 (+11)
30K → 20M
14:03 | 10:20/mi
21M
3:23:25
Rank: #21607 (-36)
20M → 21M
11:36 | 11:36/mi
35K· 21.75 mi
3:30:52
Rank: #21593 (+14)
21M → 35K
7:27 | 9:57/mi
23M
3:44:14
Rank: #21602 (-9)
35K → 23M
13:22 | 10:41/mi
24M
3:54:27
Rank: #21585 (+17)
23M → 24M
10:13 | 10:13/mi
40K· 24.85 mi
4:03:18
Rank: #21570 (+15)
24M → 40K
8:51 | 10:21/mi
25.2M
4:07:10
Rank: #21556 (+14)
40K → 25.2M
3:52 | 11:13/mi
Finish· 26.22 mi
4:17:16
Rank: #21551 (+5)
25.2M → Finish
10:06 | 9:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:08
Pace9:14 /mi
2nd Half
Distance13.11 mi
Time2:16:08
Pace10:23 /mi
📊Positive Split: 12.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:1527:548:5927:54
8:59
-
10K
6.21 mi11:52:3956:189:0428:24
9:08
+0:09
15K
9.32 mi12:21:571:25:369:1129:18
9:26
+0:18
20K
12.43 mi12:51:181:54:579:1529:21
9:27
+0:01
Half
13.11 mi12:57:292:01:089:146:11
9:04
-0:23
25K
15.53 mi13:21:412:25:209:2124:12
9:59
+0:55
30K
18.64 mi13:54:072:57:469:3232:26
10:26
+0:27
20M
20.00 mi14:08:103:11:499:3514:03
10:20
-0:06
21M
21.00 mi14:19:463:23:259:4111:36
11:36
+1:16
35K
21.75 mi14:27:133:30:529:427:27
9:57
-1:39
23M
23.00 mi14:40:353:44:149:4513:22
10:41
+0:44
24M
24.00 mi14:50:483:54:279:4610:13
10:13
-0:28
40K
24.85 mi14:59:394:03:189:478:51
10:21
+0:08
25.2M
25.20 mi15:03:314:07:109:483:52
11:13
+0:52
Finish
26.22 mi15:13:374:17:169:4910:06
9:55
-1:18

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

8:59 /mi

Average Pace

9:49 /mi

Slowest Pace

11:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:08

47% of race

Time at Steady Pace

1:14:52

29% of race

Time at Slower Pace

1:01:16

24% of race

Average Pace: 9:49 /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 mi11:24:1527:548:5927:54
8:59
#20368
10K
6.21 mi11:52:3956:189:0428:24
9:08
#20905
15K
9.32 mi12:21:571:25:369:1129:18
9:26
#21307
20K
12.43 mi12:51:181:54:579:1529:21
9:27
#21358
Half
13.11 mi12:57:292:01:089:146:11
9:04
#21315
25K
15.53 mi13:21:412:25:209:2124:12
9:59
#21476
30K
18.64 mi13:54:072:57:469:3232:26
10:26
#21582
20M
20.00 mi14:08:103:11:499:3514:03
10:20
#21571
21M
21.00 mi14:19:463:23:259:4111:36
11:36
#21607
35K
21.75 mi14:27:133:30:529:427:27
9:57
#21593
23M
23.00 mi14:40:353:44:149:4513:22
10:41
#21602
24M
24.00 mi14:50:483:54:279:4610:13
10:13
#21585
40K
24.85 mi14:59:394:03:189:478:51
10:21
#21570
25.2M
25.20 mi15:03:314:07:109:483:52
11:13
#21556
Finish
26.22 mi15:13:374:17:169:4910:06
9:55
#21551
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi203688038803822050(Top 83%)8814(Top 77%)8814(Top 1081%)
10K6.21 mi3.10 mi20905-5378270-2328270-23221454(Top 81%)8533(Top 75%)8533(Top 1047%)
15K9.32 mi3.11 mi21307-4028446-1768446-17622050(Top 83%)8814(Top 77%)8814(Top 1081%)
20K12.43 mi3.11 mi21358-518470-248470-2421384(Top 80%)8458(Top 74%)8458(Top 1038%)
Half13.11 mi0.68 mi21315+438442+288442+2820740(Top 78%)8102(Top 71%)8102(Top 994%)
25K15.53 mi2.42 mi21476-1618534-928534-9222178(Top 83%)8933(Top 78%)8933(Top 1096%)
30K18.64 mi3.11 mi21582-1068606-728606-7222090(Top 83%)8953(Top 78%)8953(Top 1099%)
20M20.00 mi1.36 mi21571+118606860621382(Top 80%)8632(Top 76%)8632(Top 1059%)
21M21.00 mi1.00 mi21607-368636-308636-3022057(Top 83%)9025(Top 79%)9025(Top 1107%)
35K21.75 mi0.75 mi21593+148634+28634+221169(Top 80%)8583(Top 75%)8583(Top 1053%)
23M23.00 mi1.25 mi21602-98659-258659-2521710(Top 82%)8912(Top 78%)8912(Top 1093%)
24M24.00 mi1.00 mi21585+178663-48663-421382(Top 80%)8776(Top 77%)8776(Top 1077%)
40K24.85 mi0.85 mi21570+158663866320885(Top 78%)8537(Top 75%)8537(Top 1047%)
25.2M25.20 mi0.35 mi21556+148663866320971(Top 79%)8577(Top 75%)8577(Top 1052%)
Finish26.22 mi1.02 mi21551+58667-48667-421523(Top 81%)8858(Top 78%)8858(Top 1087%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21stories
+97ft-345ft

Overall

22050

Females

8814

F55-59

8814

5K→10K

3.1 - 6.2 mi

Top 81%
×5stories
+79ft-138ft

Overall

21454

Females

8533

F55-59

8533

10K→15K

6.2 - 9.3 mi

Top 83%
×3stories
+67ft-78ft

Overall

22050

Females

8814

F55-59

8814

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

21384

Females

8458

F55-59

8458

20K→Half

12.4 - 13.1 mi

Top 78%
×2stories
+19ft-37ft

Overall

20740

Females

8102

F55-59

8102

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

22178

Females

8933

F55-59

8933

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

22090

Females

8953

F55-59

8953

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

21382

Females

8632

F55-59

8632

20M→21M

20.0 - 21.0 mi

Top 83%
×8stories
+106ft-24ft

Overall

22057

Females

9025

F55-59

9025

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

21169

Females

8583

F55-59

8583

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

21710

Females

8912

F55-59

8912

23M→24M

23.0 - 24.0 mi

Top 80%
×6stories
+12ft-82ft

Overall

21382

Females

8776

F55-59

8776

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20885

Females

8537

F55-59

8537

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

20971

Females

8577

F55-59

8577

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

21523

Females

8858

F55-59

8858

Passing Analysis

Category:
Athletes Passed
848
Passed By
2031
Net Change
-1183
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20368
5K → 10K98635-537#20368#20905
10K → 15K45447-402#20905#21307
15K → 20K119170-51#21307#21358
20K → Half518+43#21358#21315
Half → 25K56217-161#21315#21476
25K → 30K94200-106#21476#21582
30K → 20M6453+11#21582#21571
20M → 21M4682-36#21571#21607
21M → 35K3925+14#21607#21593
35K → 23M6675-9#21593#21602
23M → 24M4831+17#21602#21585
24M → 40K4934+15#21585#21570
40K → 25.2M3016+14#21570#21556
25.2M → Finish4338+5#21556#21551
TOTALS8482031-1183
📊

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