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BOSTON MARATHON 2023

Lindsey Macdonald

Bib: 29310•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:03
Rank: #22584
Start → 5K
9:40/mi
30:03 split
10K· 6.21 mi
57:56
Rank: #21812 (+772)
5K → 10K
8:58/mi
27:53 split
15K· 9.32 mi
1:26:17
Rank: #21559 (+253)
10K → 15K
9:07/mi
28:21 split
20K· 12.43 mi
1:55:25
Rank: #21470 (+89)
15K → 20K
9:23/mi
29:08 split
Half· 13.11 mi
2:02:04
Rank: #21536 (-66)
20K → Half
9:45/mi
6:39 split
25K· 15.53 mi
2:25:30
Rank: #21508 (+28)
Half → 25K
9:40/mi
23:26 split
30K· 18.64 mi
2:57:06
Rank: #21487 (+21)
25K → 30K
10:10/mi
31:36 split
20M
3:11:07
Rank: #21476 (+11)
30K → 20M
10:19/mi
14:01 split
21M
3:21:46
Rank: #21370 (+106)
20M → 21M
10:39/mi
10:39 split
35K· 21.75 mi
3:29:32
Rank: #21410 (-40)
21M → 35K
10:23/mi
7:46 split
23M
3:42:43
Rank: #21396 (+14)
35K → 23M
10:32/mi
13:11 split
24M
3:53:31
Rank: #21481 (-85)
23M → 24M
10:48/mi
10:48 split
40K· 24.85 mi
4:03:04
Rank: #21539 (-58)
24M → 40K
11:10/mi
9:33 split
25.2M
4:07:45
Rank: #21635 (-96)
40K → 25.2M
13:35/mi
4:41 split
Finish· 26.22 mi
4:17:44
Rank: #21612 (+23)
25.2M → Finish
9:48/mi
9:59 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:04
Pace9:19 /mi
2nd Half
Distance13.11 mi
Time2:15:40
Pace10:21 /mi
📊Positive Split: 11.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:4830:039:4030:03
9:40
-
10K
6.21 mi12:18:4157:569:1927:53
8:58
-0:42
15K
9.32 mi12:47:021:26:179:1528:21
9:07
+0:09
20K
12.43 mi13:16:101:55:259:1729:08
9:23
+0:16
Half
13.11 mi13:22:492:02:049:196:39
9:45
+0:22
25K
15.53 mi13:46:152:25:309:2223:26
9:40
-0:05
30K
18.64 mi14:17:512:57:069:3031:36
10:10
+0:30
20M
20.00 mi14:31:523:11:079:3314:01
10:19
+0:09
21M
21.00 mi14:42:313:21:469:3610:39
10:39
+0:20
35K
21.75 mi14:50:173:29:329:387:46
10:23
-0:16
23M
23.00 mi15:03:283:42:439:4113:11
10:32
+0:09
24M
24.00 mi15:14:163:53:319:4410:48
10:48
+0:16
40K
24.85 mi15:23:494:03:049:479:33
11:10
+0:22
25.2M
25.20 mi15:28:304:07:459:504:41
13:35
+2:25
Finish
26.22 mi15:38:294:17:449:509:59
9:48
-3:47

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

8:58 /mi

Average Pace

9:50 /mi

Slowest Pace

13:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:25:22

33% of race

Time at Steady Pace

2:27:20

57% of race

Time at Slower Pace

25:02

10% of race

Average Pace: 9:50 /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 mi11:50:4830:039:4030:03
9:40
#22584
10K
6.21 mi12:18:4157:569:1927:53
8:58
#21812
15K
9.32 mi12:47:021:26:179:1528:21
9:07
#21559
20K
12.43 mi13:16:101:55:259:1729:08
9:23
#21470
Half
13.11 mi13:22:492:02:049:196:39
9:45
#21536
25K
15.53 mi13:46:152:25:309:2223:26
9:40
#21508
30K
18.64 mi14:17:512:57:069:3031:36
10:10
#21487
20M
20.00 mi14:31:523:11:079:3314:01
10:19
#21476
21M
21.00 mi14:42:313:21:469:3610:39
10:39
#21370
35K
21.75 mi14:50:173:29:329:387:46
10:23
#21410
23M
23.00 mi15:03:283:42:439:4113:11
10:32
#21396
24M
24.00 mi15:14:163:53:319:4410:48
10:48
#21481
40K
24.85 mi15:23:494:03:049:479:33
11:10
#21539
25.2M
25.20 mi15:28:304:07:459:504:41
13:35
#21635
Finish
26.22 mi15:38:294:17:449:509:59
9:48
#21612
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi225849175917521051(Top 79%)8265(Top 72%)8265(Top 169%)
10K6.21 mi3.10 mi21812+7728749+4268749+42620783(Top 78%)8143(Top 71%)8143(Top 167%)
15K9.32 mi3.11 mi21559+2538591+1588591+15821051(Top 79%)8265(Top 72%)8265(Top 169%)
20K12.43 mi3.11 mi21470+898538+538538+5321192(Top 80%)8341(Top 73%)8341(Top 171%)
Half13.11 mi0.68 mi21536-668567-298567-2922760(Top 85%)9215(Top 81%)9215(Top 189%)
25K15.53 mi2.42 mi21508+288548+198548+1921347(Top 80%)8466(Top 74%)8466(Top 173%)
30K18.64 mi3.11 mi21487+218549-18549-121472(Top 81%)8616(Top 75%)8616(Top 176%)
20M20.00 mi1.36 mi21476+118553-48553-421310(Top 80%)8587(Top 75%)8587(Top 176%)
21M21.00 mi1.00 mi21370+1068510+438510+4320028(Top 75%)7951(Top 70%)7951(Top 163%)
35K21.75 mi0.75 mi21410-408541-318541-3122166(Top 83%)9143(Top 80%)9143(Top 187%)
23M23.00 mi1.25 mi21396+148543-28543-221397(Top 80%)8737(Top 76%)8737(Top 179%)
24M24.00 mi1.00 mi21481-858602-598602-5922665(Top 85%)9452(Top 83%)9452(Top 194%)
40K24.85 mi0.85 mi21539-588650-488650-4822690(Top 85%)9496(Top 83%)9496(Top 194%)
25.2M25.20 mi0.35 mi21635-968705-558705-5524608(Top 92%)10487(Top 92%)10487(Top 215%)
Finish26.22 mi1.02 mi21612+238702+38702+321161(Top 79%)8643(Top 76%)8643(Top 177%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

21051

Females

8265

F18-39

8265

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

20783

Females

8143

F18-39

8143

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

21051

Females

8265

F18-39

8265

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

21192

Females

8341

F18-39

8341

20K→Half

12.4 - 13.1 mi

Top 85%
×2story building
+19ft-37ft

Overall

22760

Females

9215

F18-39

9215

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

21347

Females

8466

F18-39

8466

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

21472

Females

8616

F18-39

8616

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

21310

Females

8587

F18-39

8587

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

20028

Females

7951

F18-39

7951

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

22166

Females

9143

F18-39

9143

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

21397

Females

8737

F18-39

8737

23M→24M

23.0 - 24.0 mi

Top 85%
×6story building
+12ft-82ft

Overall

22665

Females

9452

F18-39

9452

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

22690

Females

9496

F18-39

9496

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24608

Females

10487

F18-39

10487

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2story building
+22ft-21ft

Overall

21161

Females

8643

F18-39

8643

Passing Analysis

Category:
Athletes Passed
1969
Passed By
997
Net Change
+972
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22584
5K → 10K81543+772#22584#21812
10K → 15K32269+253#21812#21559
15K → 20K17889+89#21559#21470
20K → Half1177-66#21470#21536
Half → 25K12395+28#21536#21508
25K → 30K135114+21#21508#21487
30K → 20M7261+11#21487#21476
20M → 21M11812+106#21476#21370
21M → 35K2262-40#21370#21410
35K → 23M7056+14#21410#21396
23M → 24M21106-85#21396#21481
24M → 40K3088-58#21481#21539
40K → 25.2M5101-96#21539#21635
25.2M → Finish4724+23#21635#21612
TOTALS1969997+972
📊

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