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BOSTON MARATHON 2023

Lauren Brown

Bib: 25262•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
29:00
Rank: #21637
Start → 5K
29:00 | 9:20/mi
10K· 6.21 mi
56:55
Rank: #21281 (+356)
5K → 10K
27:55 | 8:59/mi
15K· 9.32 mi
1:24:22
Rank: #20804 (+477)
10K → 15K
27:27 | 8:50/mi
20K· 12.43 mi
1:52:20
Rank: #20536 (+268)
15K → 20K
27:58 | 9:00/mi
Half· 13.11 mi
1:58:25
Rank: #20508 (+28)
20K → Half
6:05 | 8:55/mi
25K· 15.53 mi
2:20:25
Rank: #20313 (+195)
Half → 25K
22:00 | 9:04/mi
30K· 18.64 mi
2:49:50
Rank: #20105 (+208)
25K → 30K
29:25 | 9:28/mi
20M
3:02:59
Rank: #20039 (+66)
30K → 20M
13:09 | 9:41/mi
21M
3:13:11
Rank: #19945 (+94)
20M → 21M
10:12 | 10:12/mi
35K· 21.75 mi
3:20:05
Rank: #19905 (+40)
21M → 35K
6:54 | 9:13/mi
23M
3:32:03
Rank: #19807 (+98)
35K → 23M
11:58 | 9:33/mi
24M
3:41:33
Rank: #19790 (+17)
23M → 24M
9:30 | 9:30/mi
40K· 24.85 mi
3:49:42
Rank: #19743 (+47)
24M → 40K
8:09 | 9:32/mi
25.2M
3:53:13
Rank: #19723 (+20)
40K → 25.2M
3:31 | 10:12/mi
Finish· 26.22 mi
4:02:37
Rank: #19703 (+20)
25.2M → Finish
9:24 | 9:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:25
Pace9:02 /mi
2nd Half
Distance13.11 mi
Time2:04:12
Pace9:28 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:0429:009:2029:00
9:20
-
10K
6.21 mi12:18:5956:559:1027:55
8:59
-0:21
15K
9.32 mi12:46:261:24:229:0327:27
8:50
-0:09
20K
12.43 mi13:14:241:52:209:0227:58
9:00
+0:10
Half
13.11 mi13:20:291:58:259:026:05
8:55
-0:05
25K
15.53 mi13:42:292:20:259:0222:00
9:04
+0:09
30K
18.64 mi14:11:542:49:509:0729:25
9:28
+0:24
20M
20.00 mi14:25:033:02:599:0913:09
9:41
+0:13
21M
21.00 mi14:35:153:13:119:1210:12
10:12
+0:31
35K
21.75 mi14:42:093:20:059:126:54
9:13
-0:59
23M
23.00 mi14:54:073:32:039:1311:58
9:33
+0:20
24M
24.00 mi15:03:373:41:339:149:30
9:30
-0:03
40K
24.85 mi15:11:463:49:429:148:09
9:32
+0:02
25.2M
25.20 mi15:15:173:53:139:153:31
10:12
+0:40
Finish
26.22 mi15:24:414:02:379:169:24
9:13
-0:59

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

8:50 /mi

Average Pace

9:16 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:48:54

94% of race

Time at Steady Pace

13:43

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:15 /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 mi11:51:0429:009:2029:00
9:20
#21637
10K
6.21 mi12:18:5956:559:1027:55
8:59
#21281
15K
9.32 mi12:46:261:24:229:0327:27
8:50
#20804
20K
12.43 mi13:14:241:52:209:0227:58
9:00
#20536
Half
13.11 mi13:20:291:58:259:026:05
8:55
#20508
25K
15.53 mi13:42:292:20:259:0222:00
9:04
#20313
30K
18.64 mi14:11:542:49:509:0729:25
9:28
#20105
20M
20.00 mi14:25:033:02:599:0913:09
9:41
#20039
21M
21.00 mi14:35:153:13:119:1210:12
10:12
#19945
35K
21.75 mi14:42:093:20:059:126:54
9:13
#19905
23M
23.00 mi14:54:073:32:039:1311:58
9:33
#19807
24M
24.00 mi15:03:373:41:339:149:30
9:30
#19790
40K
24.85 mi15:11:463:49:429:148:09
9:32
#19743
25.2M
25.20 mi15:15:173:53:139:153:31
10:12
#19723
Finish
26.22 mi15:24:414:02:379:169:24
9:13
#19703
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi216378711871119714(Top 74%)7513(Top 66%)7513(Top 154%)
10K6.21 mi3.10 mi21281+3568467+2448467+24420824(Top 78%)8168(Top 72%)8168(Top 167%)
15K9.32 mi3.11 mi20804+4778178+2898178+28919714(Top 74%)7513(Top 66%)7513(Top 154%)
20K12.43 mi3.11 mi20536+2688018+1608018+16019717(Top 74%)7506(Top 66%)7506(Top 154%)
Half13.11 mi0.68 mi20508+287998+207998+2020087(Top 75%)7714(Top 68%)7714(Top 158%)
25K15.53 mi2.42 mi20313+1957880+1187880+11819317(Top 73%)7319(Top 64%)7319(Top 150%)
30K18.64 mi3.11 mi20105+2087785+957785+9519321(Top 73%)7373(Top 65%)7373(Top 151%)
20M20.00 mi1.36 mi20039+667767+187767+1819507(Top 73%)7575(Top 66%)7575(Top 155%)
21M21.00 mi1.00 mi19945+947715+527715+5218735(Top 70%)7190(Top 63%)7190(Top 147%)
35K21.75 mi0.75 mi19905+407701+147701+1418871(Top 71%)7325(Top 64%)7325(Top 150%)
23M23.00 mi1.25 mi19807+987652+497652+4918570(Top 70%)7169(Top 63%)7169(Top 147%)
24M24.00 mi1.00 mi19790+177644+87644+819231(Top 72%)7580(Top 66%)7580(Top 155%)
40K24.85 mi0.85 mi19743+477634+107634+1018462(Top 69%)7194(Top 63%)7194(Top 147%)
25.2M25.20 mi0.35 mi19723+207628+67628+618169(Top 68%)7049(Top 62%)7049(Top 144%)
Finish26.22 mi1.02 mi19703+207618+107618+1019048(Top 72%)7464(Top 65%)7464(Top 153%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21stories
+97ft-345ft

Overall

19714

Females

7513

F18-39

7513

5K→10K

3.1 - 6.2 mi

Top 78%
×5stories
+79ft-138ft

Overall

20824

Females

8168

F18-39

8168

10K→15K

6.2 - 9.3 mi

Top 74%
×3stories
+67ft-78ft

Overall

19714

Females

7513

F18-39

7513

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

19717

Females

7506

F18-39

7506

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

20087

Females

7714

F18-39

7714

Half→25K

13.1 - 15.5 mi

Top 73%
×4stories
+66ft-88ft

Overall

19317

Females

7319

F18-39

7319

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

19321

Females

7373

F18-39

7373

30K→20M

18.6 - 20.0 mi

Top 73%
×5stories
+64ft-50ft

Overall

19507

Females

7575

F18-39

7575

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

18735

Females

7190

F18-39

7190

21M→35K

21.0 - 21.8 mi

Top 71%
×7stories
+17ft-86ft

Overall

18871

Females

7325

F18-39

7325

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

18570

Females

7169

F18-39

7169

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

19231

Females

7580

F18-39

7580

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

18462

Females

7194

F18-39

7194

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

18169

Females

7049

F18-39

7049

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

19048

Females

7464

F18-39

7464

Passing Analysis

Category:
Athletes Passed
2519
Passed By
585
Net Change
+1934
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21637
5K → 10K498142+356#21637#21281
10K → 15K51134+477#21281#20804
15K → 20K32254+268#20804#20536
20K → Half4517+28#20536#20508
Half → 25K22631+195#20508#20313
25K → 30K25951+208#20313#20105
30K → 20M11852+66#20105#20039
20M → 21M13036+94#20039#19945
21M → 35K5616+40#19945#19905
35K → 23M12931+98#19905#19807
23M → 24M6144+17#19807#19790
24M → 40K7629+47#19790#19743
40K → 25.2M3212+20#19743#19723
25.2M → Finish5636+20#19723#19703
TOTALS2519585+1934
📊

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