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BOSTON MARATHON 2023

Lauren Marshall

Bib: 14459•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 32%
Gender (Female)
#0 / 11423
Top 13%
Division (F18-39)
#0 / 4884
Top 23%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:37
Rank: #5996
Start → 5K
21:37 | 6:57/mi
10K· 6.21 mi
43:37
Rank: #6619 (-623)
5K → 10K
22:00 | 7:05/mi
15K· 9.32 mi
1:06:25
Rank: #7275 (-656)
10K → 15K
22:48 | 7:20/mi
20K· 12.43 mi
1:29:53
Rank: #7785 (-510)
15K → 20K
23:28 | 7:33/mi
Half· 13.11 mi
1:34:55
Rank: #7846 (-61)
20K → Half
5:02 | 7:23/mi
25K· 15.53 mi
1:53:37
Rank: #8175 (-329)
Half → 25K
18:42 | 7:43/mi
30K· 18.64 mi
2:18:08
Rank: #8436 (-261)
25K → 30K
24:31 | 7:53/mi
20M
2:28:44
Rank: #8458 (-22)
30K → 20M
10:36 | 7:48/mi
21M
2:37:01
Rank: #8477 (-19)
20M → 21M
8:17 | 8:17/mi
35K· 21.75 mi
2:42:40
Rank: #8477
21M → 35K
5:39 | 7:33/mi
23M
2:52:30
Rank: #8477
35K → 23M
9:50 | 7:51/mi
24M
3:00:07
Rank: #8436 (+41)
23M → 24M
7:37 | 7:37/mi
40K· 24.85 mi
3:06:49
Rank: #8437 (-1)
24M → 40K
6:42 | 7:50/mi
25.2M
3:09:45
Rank: #8450 (-13)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:17:35
Rank: #8495 (-45)
25.2M → Finish
7:50 | 7:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:55
Pace7:14 /mi
2nd Half
Distance13.11 mi
Time1:42:40
Pace7:50 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3521:376:5721:37
6:57
-
10K
6.21 mi11:12:3543:377:0122:00
7:05
+0:08
15K
9.32 mi11:35:231:06:257:0822:48
7:20
+0:15
20K
12.43 mi11:58:511:29:537:1423:28
7:33
+0:13
Half
13.11 mi12:03:531:34:557:145:02
7:23
-0:10
25K
15.53 mi12:22:351:53:377:1918:42
7:43
+0:20
30K
18.64 mi12:47:062:18:087:2524:31
7:53
+0:10
20M
20.00 mi12:57:422:28:447:2610:36
7:48
-0:05
21M
21.00 mi13:05:592:37:017:298:17
8:17
+0:29
35K
21.75 mi13:11:382:42:407:295:39
7:33
-0:44
23M
23.00 mi13:21:282:52:307:309:50
7:51
+0:18
24M
24.00 mi13:29:053:00:077:307:37
7:37
-0:14
40K
24.85 mi13:35:473:06:497:316:42
7:50
+0:13
25.2M
25.20 mi13:38:433:09:457:322:56
8:30
+0:40
Finish
26.22 mi13:46:333:17:357:327:50
7:41
-0:49

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

6:57 /mi

Average Pace

7:32 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:11:27

36% of race

Time at Steady Pace

1:30:24

46% of race

Time at Slower Pace

35:44

18% of race

Average Pace: 7:32 /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 mi10:50:3521:376:5721:37
6:57
#5996
10K
6.21 mi11:12:3543:377:0122:00
7:05
#6619
15K
9.32 mi11:35:231:06:257:0822:48
7:20
#7275
20K
12.43 mi11:58:511:29:537:1423:28
7:33
#7785
Half
13.11 mi12:03:531:34:557:145:02
7:23
#7846
25K
15.53 mi12:22:351:53:377:1918:42
7:43
#8175
30K
18.64 mi12:47:062:18:087:2524:31
7:53
#8436
20M
20.00 mi12:57:422:28:447:2610:36
7:48
#8458
21M
21.00 mi13:05:592:37:017:298:17
8:17
#8477
35K
21.75 mi13:11:382:42:407:295:39
7:33
#8477
23M
23.00 mi13:21:282:52:307:309:50
7:51
#8477
24M
24.00 mi13:29:053:00:077:307:37
7:37
#8436
40K
24.85 mi13:35:473:06:497:316:42
7:50
#8437
25.2M
25.20 mi13:38:433:09:457:322:56
8:30
#8450
Finish
26.22 mi13:46:333:17:357:327:50
7:41
#8495
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi59965085088879(Top 33%)1402(Top 12%)1402(Top 29%)
10K6.21 mi3.10 mi6619-623642-134642-1347335(Top 28%)842(Top 7%)842(Top 17%)
15K9.32 mi3.11 mi7275-656811-169811-1698879(Top 33%)1402(Top 12%)1402(Top 29%)
20K12.43 mi3.11 mi7785-510979-168979-1689732(Top 37%)1795(Top 16%)1795(Top 37%)
Half13.11 mi0.68 mi7846-611001-221001-229287(Top 35%)1579(Top 14%)1579(Top 32%)
25K15.53 mi2.42 mi8175-3291144-1431144-14310393(Top 39%)2170(Top 19%)2170(Top 44%)
30K18.64 mi3.11 mi8436-2611278-1341278-13410070(Top 38%)2191(Top 19%)2191(Top 45%)
20M20.00 mi1.36 mi8458-221303-251303-258877(Top 33%)1744(Top 15%)1744(Top 36%)
21M21.00 mi1.00 mi8477-191330-271330-279147(Top 34%)1979(Top 17%)1979(Top 41%)
35K21.75 mi0.75 mi84771340-101340-108942(Top 34%)1879(Top 16%)1879(Top 38%)
23M23.00 mi1.25 mi84771362-221362-228768(Top 33%)1915(Top 17%)1915(Top 39%)
24M24.00 mi1.00 mi8436+411367-51367-58536(Top 32%)1888(Top 17%)1888(Top 39%)
40K24.85 mi0.85 mi8437-11389-221389-228922(Top 34%)2138(Top 19%)2138(Top 44%)
25.2M25.20 mi0.35 mi8450-131404-151404-159592(Top 36%)2475(Top 22%)2475(Top 51%)
Finish26.22 mi1.02 mi8495-451437-331437-339902(Top 37%)2649(Top 23%)2649(Top 54%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

8879

Females

1402

F18-39

1402

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7335

Females

842

F18-39

842

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

8879

Females

1402

F18-39

1402

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

9732

Females

1795

F18-39

1795

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

9287

Females

1579

F18-39

1579

Half→25K

13.1 - 15.5 mi

Top 39%
×4stories
+66ft-88ft

Overall

10393

Females

2170

F18-39

2170

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

10070

Females

2191

F18-39

2191

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

8877

Females

1744

F18-39

1744

20M→21M

20.0 - 21.0 mi

Top 34%
×8stories
+106ft-24ft

Overall

9147

Females

1979

F18-39

1979

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

8942

Females

1879

F18-39

1879

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

8768

Females

1915

F18-39

1915

23M→24M

23.0 - 24.0 mi

Top 32%
×6stories
+12ft-82ft

Overall

8536

Females

1888

F18-39

1888

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

8922

Females

2138

F18-39

2138

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9592

Females

2475

F18-39

2475

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

9902

Females

2649

F18-39

2649

Passing Analysis

Category:
Athletes Passed
673
Passed By
3172
Net Change
-2499
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5996
5K → 10K32655-623#5996#6619
10K → 15K15671-656#6619#7275
15K → 20K26536-510#7275#7785
20K → Half970-61#7785#7846
Half → 25K32361-329#7846#8175
25K → 30K80341-261#8175#8436
30K → 20M7496-22#8436#8458
20M → 21M6382-19#8458#8477
21M → 35K42420#8477#8477
35K → 23M80800#8477#8477
23M → 24M8645+41#8477#8436
24M → 40K5758-1#8436#8437
40K → 25.2M2538-13#8437#8450
25.2M → Finish5297-45#8450#8495
TOTALS6733172-2499
📊

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