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BOSTON MARATHON 2023

Laura Lajewski

Bib: 26150•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
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
10:25/mi
32:22
↑ 97↓ 3451.5%
10K· 6.21 mi
10:26/mi
1:04:46
↑ 79↓ 1380.4%
15K· 9.32 mi
10:34/mi
1:37:36
↑ 67↓ 78
20K· 12.43 mi
10:54/mi
2:11:29
↑ 106↓ 860.1%
Half· 13.11 mi
10:54/mi
2:18:55
↑ 19↓ 370.5%
25K· 15.53 mi
11:11/mi
2:46:02
↑ 66↓ 880.2%
30K· 18.64 mi
11:49/mi
3:22:46
↑ 181↓ 1480.2%
20M
12:38/mi
3:39:56
↑ 64↓ 500.2%
21M
13:44/mi
3:53:40
↑ 106↓ 241.6%
35K· 21.75 mi
12:21/mi
4:02:54
↑ 17↓ 861.7%
23M
13:24/mi
4:19:41
↑ 23↓ 630.6%
24M
12:28/mi
4:32:09
↓ 821.3%
40K· 24.85 mi
13:11/mi
4:43:25
↓ 200.3%
25.2M
14:36/mi
4:48:27
↑ 13↓ 160.2%
Finish· 26.22 mi
11:13/mi
4:59:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:18:55
Pace10:36 /mi
2nd Half
Distance13.11 mi
Time2:40:58
Pace12:17 /mi
📊Positive Split: 15.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:3332:2210:2532:22
10:25
-
10K
6.21 mi12:26:571:04:4610:2532:24
10:26
+0:01
15K
9.32 mi12:59:471:37:3610:2832:50
10:34
+0:08
20K
12.43 mi13:33:402:11:2910:3533:53
10:54
+0:20
Half
13.11 mi13:41:062:18:5510:367:26
10:54
0:00
25K
15.53 mi14:08:132:46:0210:4127:07
11:11
+0:17
30K
18.64 mi14:44:573:22:4610:5336:44
11:49
+0:38
20M
20.00 mi15:02:073:39:5611:0017:10
12:38
+0:49
21M
21.00 mi15:15:513:53:4011:0813:44
13:44
+1:06
35K
21.75 mi15:25:054:02:5411:109:14
12:21
-1:23
23M
23.00 mi15:41:524:19:4111:1716:47
13:24
+1:03
24M
24.00 mi15:54:204:32:0911:2012:28
12:28
-0:56
40K
24.85 mi16:05:364:43:2511:2411:16
13:11
+0:43
25.2M
25.20 mi16:10:384:48:2711:275:02
14:36
+1:25
Finish
26.22 mi16:22:044:59:5311:2711:26
11:13
-3:23

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

10:25 /mi

Average Pace

11:27 /mi

Slowest Pace

14:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:55

46% of race

Time at Steady Pace

1:24:31

28% of race

Time at Slower Pace

1:16:27

25% of race

Average Pace: 11:26 /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 mi11:54:3332:2210:2532:22
10:25
#24515
10K
6.21 mi12:26:571:04:4610:2532:24
10:26
#24539
15K
9.32 mi12:59:471:37:3610:2832:50
10:34
#24575
20K
12.43 mi13:33:402:11:2910:3533:53
10:54
#24549
Half
13.11 mi13:41:062:18:5510:367:26
10:54
#24582
25K
15.53 mi14:08:132:46:0210:4127:07
11:11
#24543
30K
18.64 mi14:44:573:22:4610:5336:44
11:49
#24497
20M
20.00 mi15:02:073:39:5611:0017:10
12:38
#24536
21M
21.00 mi15:15:513:53:4011:0813:44
13:44
#24572
35K
21.75 mi15:25:054:02:5411:109:14
12:21
#24603
23M
23.00 mi15:41:524:19:4111:1716:47
13:24
#24689
24M
24.00 mi15:54:204:32:0911:2012:28
12:28
#24731
40K
24.85 mi16:05:364:43:2511:2411:16
13:11
#24772
25.2M
25.20 mi16:10:384:48:2711:275:02
14:36
#24810
Finish
26.22 mi16:22:044:59:5311:2711:26
11:13
#24812
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi24515101631016324579(Top 92%)10223(Top 89%)10223(Top 544%)
10K6.21 mi3.10 mi24539-2410182-1910182-1924555(Top 92%)10200(Top 89%)10200(Top 543%)
15K9.32 mi3.11 mi24575-3610205-2310205-2324579(Top 92%)10223(Top 89%)10223(Top 544%)
20K12.43 mi3.11 mi24549+2610206-110206-124497(Top 92%)10199(Top 89%)10199(Top 543%)
Half13.11 mi0.68 mi24582-3310225-1910225-1924806(Top 93%)10381(Top 91%)10381(Top 553%)
25K15.53 mi2.42 mi24543+3910212+1310212+1324252(Top 91%)10088(Top 88%)10088(Top 537%)
30K18.64 mi3.11 mi24497+4610201+1110201+1124301(Top 91%)10172(Top 89%)10172(Top 542%)
20M20.00 mi1.36 mi24536-3910230-2910230-2924859(Top 93%)10526(Top 92%)10526(Top 560%)
21M21.00 mi1.00 mi24572-3610255-2510255-2524814(Top 93%)10512(Top 92%)10512(Top 560%)
35K21.75 mi0.75 mi24603-3110284-2910284-2925025(Top 94%)10667(Top 93%)10667(Top 568%)
23M23.00 mi1.25 mi24689-8610341-5710341-5725444(Top 96%)10867(Top 95%)10867(Top 579%)
24M24.00 mi1.00 mi24731-4210375-3410375-3425036(Top 94%)10702(Top 94%)10702(Top 570%)
40K24.85 mi0.85 mi24772-4110401-2610401-2625087(Top 94%)10718(Top 94%)10718(Top 571%)
25.2M25.20 mi0.35 mi24810-3810428-2710428-2725463(Top 96%)10911(Top 96%)10911(Top 581%)
Finish26.22 mi1.02 mi24812-210436-810436-824331(Top 91%)10320(Top 90%)10320(Top 550%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21story building
+97ft-345ft

Overall

24579

Females

10223

F40-44

10223

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

24555

Females

10200

F40-44

10200

10K→15K

6.2 - 9.3 mi

Top 92%
×3story building
+67ft-78ft

Overall

24579

Females

10223

F40-44

10223

15K→20K

9.3 - 12.4 mi

Top 92%
×5story building
+106ft-86ft

Overall

24497

Females

10199

F40-44

10199

20K→Half

12.4 - 13.1 mi

Top 93%
×2story building
+19ft-37ft

Overall

24806

Females

10381

F40-44

10381

Half→25K

13.1 - 15.5 mi

Top 91%
×4story building
+66ft-88ft

Overall

24252

Females

10088

F40-44

10088

25K→30K

15.5 - 18.6 mi

Top 91%
×9story building
+181ft-148ft

Overall

24301

Females

10172

F40-44

10172

30K→20M

18.6 - 20.0 mi

Top 93%
×5story building
+64ft-50ft

Overall

24859

Females

10526

F40-44

10526

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

24814

Females

10512

F40-44

10512

21M→35K

21.0 - 21.8 mi

Top 94%
×7story building
+17ft-86ft

Overall

25025

Females

10667

F40-44

10667

35K→23M

21.8 - 23.0 mi

Top 96%
×5story building
+23ft-63ft

Overall

25444

Females

10867

F40-44

10867

23M→24M

23.0 - 24.0 mi

Top 94%
×6story building
+12ft-82ft

Overall

25036

Females

10702

F40-44

10702

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

25087

Females

10718

F40-44

10718

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

25463

Females

10911

F40-44

10911

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2story building
+22ft-21ft

Overall

24331

Females

10320

F40-44

10320

Passing Analysis

Category:
Athletes Passed
773
Passed By
1070
Net Change
-297
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24515
5K → 10K180204-24#24515#24539
10K → 15K115151-36#24539#24575
15K → 20K10579+26#24575#24549
20K → Half1447-33#24549#24582
Half → 25K9758+39#24582#24543
25K → 30K12478+46#24543#24497
30K → 20M2968-39#24497#24536
20M → 21M3268-36#24536#24572
21M → 35K1243-31#24572#24603
35K → 23M19105-86#24603#24689
23M → 24M1153-42#24689#24731
24M → 40K1556-41#24731#24772
40K → 25.2M139-38#24772#24810
25.2M → Finish1921-2#24810#24812
TOTALS7731070-297
📊

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