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BOSTON MARATHON 2023

Laura Baas

Bib: 10571•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 24%
Gender (Female)
#0 / 11423
Top 6%
Division (F18-39)
#0 / 4884
Top 12%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:19
Rank: #7402
Start → 5K
22:19 | 7:11/mi
10K· 6.21 mi
44:30
Rank: #7508 (-106)
5K → 10K
22:11 | 7:08/mi
15K· 9.32 mi
1:06:41
Rank: #7449 (+59)
10K → 15K
22:11 | 7:08/mi
20K· 12.43 mi
1:28:59
Rank: #7279 (+170)
15K → 20K
22:18 | 7:11/mi
Half· 13.11 mi
1:33:47
Rank: #7257 (+22)
20K → Half
4:48 | 7:02/mi
25K· 15.53 mi
1:51:12
Rank: #7112 (+145)
Half → 25K
17:25 | 7:11/mi
30K· 18.64 mi
2:14:07
Rank: #6968 (+144)
25K → 30K
22:55 | 7:23/mi
20M
2:24:09
Rank: #6886 (+82)
30K → 20M
10:02 | 7:23/mi
21M
2:31:59
Rank: #6807 (+79)
20M → 21M
7:50 | 7:50/mi
35K· 21.75 mi
2:37:13
Rank: #6723 (+84)
21M → 35K
5:14 | 7:00/mi
23M
2:46:24
Rank: #6616 (+107)
35K → 23M
9:11 | 7:20/mi
24M
2:53:29
Rank: #6511 (+105)
23M → 24M
7:05 | 7:05/mi
40K· 24.85 mi
2:59:43
Rank: #6419 (+92)
24M → 40K
6:14 | 7:17/mi
25.2M
3:02:25
Rank: #6390 (+29)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
3:09:41
Rank: #6350 (+40)
25.2M → Finish
7:16 | 7:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:47
Pace7:09 /mi
2nd Half
Distance13.11 mi
Time1:35:54
Pace7:19 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:3022:197:1122:19
7:11
-
10K
6.21 mi11:10:4144:307:1022:11
7:08
-0:03
15K
9.32 mi11:32:521:06:417:0922:11
7:08
0:00
20K
12.43 mi11:55:101:28:597:1022:18
7:11
+0:03
Half
13.11 mi11:59:581:33:477:094:48
7:02
-0:09
25K
15.53 mi12:17:231:51:127:1017:25
7:11
+0:09
30K
18.64 mi12:40:182:14:077:1222:55
7:23
+0:12
20M
20.00 mi12:50:202:24:097:1210:02
7:23
0:00
21M
21.00 mi12:58:102:31:597:147:50
7:50
+0:27
35K
21.75 mi13:03:242:37:137:145:14
7:00
-0:50
23M
23.00 mi13:12:352:46:247:149:11
7:20
+0:20
24M
24.00 mi13:19:402:53:297:147:05
7:05
-0:15
40K
24.85 mi13:25:542:59:437:146:14
7:17
+0:12
25.2M
25.20 mi13:28:363:02:257:142:42
7:50
+0:33
Finish
26.22 mi13:35:523:09:417:147:16
7:08
-0:42

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

7:00 /mi

Average Pace

7:14 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:09

94% of race

Time at Steady Pace

10:32

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:14 /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 mi10:48:3022:197:1122:19
7:11
#7402
10K
6.21 mi11:10:4144:307:1022:11
7:08
#7508
15K
9.32 mi11:32:521:06:417:0922:11
7:08
#7449
20K
12.43 mi11:55:101:28:597:1022:18
7:11
#7279
Half
13.11 mi11:59:581:33:477:094:48
7:02
#7257
25K
15.53 mi12:17:231:51:127:1017:25
7:11
#7112
30K
18.64 mi12:40:182:14:077:1222:55
7:23
#6968
20M
20.00 mi12:50:202:24:097:1210:02
7:23
#6886
21M
21.00 mi12:58:102:31:597:147:50
7:50
#6807
35K
21.75 mi13:03:242:37:137:145:14
7:00
#6723
23M
23.00 mi13:12:352:46:247:149:11
7:20
#6616
24M
24.00 mi13:19:402:53:297:147:05
7:05
#6511
40K
24.85 mi13:25:542:59:437:146:14
7:17
#6419
25.2M
25.20 mi13:28:363:02:257:142:42
7:50
#6390
Finish
26.22 mi13:35:523:09:417:147:16
7:08
#6350
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi74028198197413(Top 28%)865(Top 8%)865(Top 18%)
10K6.21 mi3.10 mi7508-106858-39858-397698(Top 29%)954(Top 8%)954(Top 20%)
15K9.32 mi3.11 mi7449+59849+9849+97413(Top 28%)865(Top 8%)865(Top 18%)
20K12.43 mi3.11 mi7279+170820+29820+296969(Top 26%)773(Top 7%)773(Top 16%)
Half13.11 mi0.68 mi7257+22813+7813+76808(Top 26%)705(Top 6%)705(Top 14%)
25K15.53 mi2.42 mi7112+145786+27786+276598(Top 25%)727(Top 6%)727(Top 15%)
30K18.64 mi3.11 mi6968+144772+14772+146479(Top 24%)757(Top 7%)757(Top 15%)
20M20.00 mi1.36 mi6886+82759+13759+136118(Top 23%)732(Top 6%)732(Top 15%)
21M21.00 mi1.00 mi6807+79749+10749+106358(Top 24%)896(Top 8%)896(Top 18%)
35K21.75 mi0.75 mi6723+84739+10739+105361(Top 20%)587(Top 5%)587(Top 12%)
23M23.00 mi1.25 mi6616+107726+13726+135513(Top 21%)663(Top 6%)663(Top 14%)
24M24.00 mi1.00 mi6511+105714+12714+125146(Top 19%)611(Top 5%)611(Top 13%)
40K24.85 mi0.85 mi6419+92699+15699+155422(Top 20%)777(Top 7%)777(Top 16%)
25.2M25.20 mi0.35 mi6390+29695+4695+45602(Top 21%)915(Top 8%)915(Top 19%)
Finish26.22 mi1.02 mi6350+40694+1694+16015(Top 23%)1062(Top 9%)1062(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21stories
+97ft-345ft

Overall

7413

Females

865

F18-39

865

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

7698

Females

954

F18-39

954

10K→15K

6.2 - 9.3 mi

Top 28%
×3stories
+67ft-78ft

Overall

7413

Females

865

F18-39

865

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

6969

Females

773

F18-39

773

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

6808

Females

705

F18-39

705

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

6598

Females

727

F18-39

727

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6479

Females

757

F18-39

757

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6118

Females

732

F18-39

732

20M→21M

20.0 - 21.0 mi

Top 24%
×8stories
+106ft-24ft

Overall

6358

Females

896

F18-39

896

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5361

Females

587

F18-39

587

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

5513

Females

663

F18-39

663

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

5146

Females

611

F18-39

611

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5422

Females

777

F18-39

777

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5602

Females

915

F18-39

915

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6015

Females

1062

F18-39

1062

Passing Analysis

Category:
Athletes Passed
1680
Passed By
628
Net Change
+1052
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7402
5K → 10K179285-106#7402#7508
10K → 15K164105+59#7508#7449
15K → 20K20535+170#7449#7279
20K → Half3311+22#7279#7257
Half → 25K16823+145#7257#7112
25K → 30K19753+144#7112#6968
30K → 20M10018+82#6968#6886
20M → 21M10324+79#6886#6807
21M → 35K895+84#6807#6723
35K → 23M12518+107#6723#6616
23M → 24M11611+105#6616#6511
24M → 40K1019+92#6511#6419
40K → 25.2M345+29#6419#6390
25.2M → Finish6626+40#6390#6350
TOTALS1680628+1052
📊

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