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BOSTON MARATHON 2023

Laura Landstra

Bib: 18774•F

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 36%
Masters (Masters Women)
#0 / 6539
Top 23%
Division (F50-54)
#0 / 1207
Top 15%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:33
Rank: #15621
Start → 5K
25:33 | 8:13/mi
10K· 6.21 mi
50:28
Rank: #15259 (+362)
5K → 10K
24:55 | 8:01/mi
15K· 9.32 mi
1:15:05
Rank: #14792 (+467)
10K → 15K
24:37 | 7:55/mi
20K· 12.43 mi
1:40:01
Rank: #14461 (+331)
15K → 20K
24:56 | 8:02/mi
Half· 13.11 mi
1:45:29
Rank: #14479 (-18)
20K → Half
5:28 | 8:01/mi
25K· 15.53 mi
2:05:01
Rank: #14260 (+219)
Half → 25K
19:32 | 8:03/mi
30K· 18.64 mi
2:30:56
Rank: #14085 (+175)
25K → 30K
25:55 | 8:21/mi
20M
2:42:22
Rank: #13983 (+102)
30K → 20M
11:26 | 8:25/mi
21M
2:51:19
Rank: #13900 (+83)
20M → 21M
8:57 | 8:57/mi
35K· 21.75 mi
2:57:36
Rank: #13922 (-22)
21M → 35K
6:17 | 8:24/mi
23M
3:08:14
Rank: #13841 (+81)
35K → 23M
10:38 | 8:30/mi
24M
3:16:34
Rank: #13807 (+34)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
3:23:51
Rank: #13781 (+26)
24M → 40K
7:17 | 8:31/mi
25.2M
3:27:02
Rank: #13778 (+3)
40K → 25.2M
3:11 | 9:14/mi
Finish· 26.22 mi
3:35:21
Rank: #13733 (+45)
25.2M → Finish
8:19 | 8:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:29
Pace8:03 /mi
2nd Half
Distance13.11 mi
Time1:49:52
Pace8:23 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3725:338:1325:33
8:13
-
10K
6.21 mi11:41:3250:288:0724:55
8:01
-0:12
15K
9.32 mi12:06:091:15:058:0324:37
7:55
-0:06
20K
12.43 mi12:31:051:40:018:0324:56
8:02
+0:07
Half
13.11 mi12:36:331:45:298:035:28
8:01
-0:01
25K
15.53 mi12:56:052:05:018:0319:32
8:03
+0:02
30K
18.64 mi13:22:002:30:568:0625:55
8:21
+0:18
20M
20.00 mi13:33:262:42:228:0711:26
8:25
+0:04
21M
21.00 mi13:42:232:51:198:098:57
8:57
+0:32
35K
21.75 mi13:48:402:57:368:106:17
8:24
-0:33
23M
23.00 mi13:59:183:08:148:1110:38
8:30
+0:06
24M
24.00 mi14:07:383:16:348:118:20
8:20
-0:10
40K
24.85 mi14:14:553:23:518:127:17
8:31
+0:11
25.2M
25.20 mi14:18:063:27:028:133:11
9:14
+0:43
Finish
26.22 mi14:26:253:35:218:138:19
8:10
-1:04

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

7:55 /mi

Average Pace

8:13 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:23:13

94% of race

Time at Steady Pace

12:08

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:13 /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 mi11:16:3725:338:1325:33
8:13
#15621
10K
6.21 mi11:41:3250:288:0724:55
8:01
#15259
15K
9.32 mi12:06:091:15:058:0324:37
7:55
#14792
20K
12.43 mi12:31:051:40:018:0324:56
8:02
#14461
Half
13.11 mi12:36:331:45:298:035:28
8:01
#14479
25K
15.53 mi12:56:052:05:018:0319:32
8:03
#14260
30K
18.64 mi13:22:002:30:568:0625:55
8:21
#14085
20M
20.00 mi13:33:262:42:228:0711:26
8:25
#13983
21M
21.00 mi13:42:232:51:198:098:57
8:57
#13900
35K
21.75 mi13:48:402:57:368:106:17
8:24
#13922
23M
23.00 mi13:59:183:08:148:1110:38
8:30
#13841
24M
24.00 mi14:07:383:16:348:118:20
8:20
#13807
40K
24.85 mi14:14:553:23:518:127:17
8:31
#13781
25.2M
25.20 mi14:18:063:27:028:133:11
9:14
#13778
Finish
26.22 mi14:26:253:35:218:138:19
8:10
#13733
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi156215050505013781(Top 52%)3954(Top 35%)3954(Top 328%)
10K6.21 mi3.10 mi15259+3624805+2454805+24514956(Top 56%)4643(Top 41%)4643(Top 385%)
15K9.32 mi3.11 mi14792+4674534+2714534+27113781(Top 52%)3954(Top 35%)3954(Top 328%)
20K12.43 mi3.11 mi14461+3314349+1854349+18513667(Top 51%)3917(Top 34%)3917(Top 325%)
Half13.11 mi0.68 mi14479-184359-104359-1014524(Top 55%)4393(Top 38%)4393(Top 364%)
25K15.53 mi2.42 mi14260+2194262+974262+9713215(Top 50%)3758(Top 33%)3758(Top 311%)
30K18.64 mi3.11 mi14085+1754197+654197+6513309(Top 50%)3925(Top 34%)3925(Top 325%)
20M20.00 mi1.36 mi13983+1024155+424155+4213114(Top 49%)3921(Top 34%)3921(Top 325%)
21M21.00 mi1.00 mi13900+834117+384117+3813145(Top 49%)4026(Top 35%)4026(Top 334%)
35K21.75 mi0.75 mi13922-224151-344151-3414732(Top 55%)4946(Top 43%)4946(Top 410%)
23M23.00 mi1.25 mi13841+814127+244127+2413189(Top 50%)4174(Top 37%)4174(Top 346%)
24M24.00 mi1.00 mi13807+344140-134140-1313454(Top 51%)4364(Top 38%)4364(Top 362%)
40K24.85 mi0.85 mi13781+264131+94131+913487(Top 51%)4464(Top 39%)4464(Top 370%)
25.2M25.20 mi0.35 mi13778+34141-104141-1013842(Top 52%)4653(Top 41%)4653(Top 386%)
Finish26.22 mi1.02 mi13733+454131+104131+1013201(Top 50%)4310(Top 38%)4310(Top 357%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

13781

Females

3954

F50-54

3954

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

14956

Females

4643

F50-54

4643

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

13781

Females

3954

F50-54

3954

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

13667

Females

3917

F50-54

3917

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

14524

Females

4393

F50-54

4393

Half→25K

13.1 - 15.5 mi

Top 50%
×4stories
+66ft-88ft

Overall

13215

Females

3758

F50-54

3758

25K→30K

15.5 - 18.6 mi

Top 50%
×9stories
+181ft-148ft

Overall

13309

Females

3925

F50-54

3925

30K→20M

18.6 - 20.0 mi

Top 49%
×5stories
+64ft-50ft

Overall

13114

Females

3921

F50-54

3921

20M→21M

20.0 - 21.0 mi

Top 49%
×8stories
+106ft-24ft

Overall

13145

Females

4026

F50-54

4026

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

14732

Females

4946

F50-54

4946

35K→23M

21.8 - 23.0 mi

Top 50%
×5stories
+23ft-63ft

Overall

13189

Females

4174

F50-54

4174

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

13454

Females

4364

F50-54

4364

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13487

Females

4464

F50-54

4464

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

13842

Females

4653

F50-54

4653

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13201

Females

4310

F50-54

4310

Passing Analysis

Category:
Athletes Passed
2682
Passed By
794
Net Change
+1888
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15621
5K → 10K521159+362#15621#15259
10K → 15K50235+467#15259#14792
15K → 20K38352+331#14792#14461
20K → Half2543-18#14461#14479
Half → 25K25637+219#14479#14260
25K → 30K276101+175#14260#14085
30K → 20M14543+102#14085#13983
20M → 21M13148+83#13983#13900
21M → 35K4163-22#13900#13922
35K → 23M12544+81#13922#13841
23M → 24M8450+34#13841#13807
24M → 40K7650+26#13807#13781
40K → 25.2M2724+3#13781#13778
25.2M → Finish9045+45#13778#13733
TOTALS2682794+1888
📊

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