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BOSTON MARATHON 2023

Lauren Alverson

Bib: 29417•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

Start
0:00:00
Race begins
5K· 3.11 mi
30:18
Rank: #22801
Start → 5K
30:18 | 9:45/mi
10K· 6.21 mi
1:00:21
Rank: #22942 (-141)
5K → 10K
30:03 | 9:40/mi
15K· 9.32 mi
1:31:03
Rank: #23069 (-127)
10K → 15K
30:42 | 9:53/mi
20K· 12.43 mi
2:03:59
Rank: #23373 (-304)
15K → 20K
32:56 | 10:36/mi
Half· 13.11 mi
2:10:57
Rank: #23389 (-16)
20K → Half
6:58 | 10:13/mi
25K· 15.53 mi
2:36:27
Rank: #23369 (+20)
Half → 25K
25:30 | 10:31/mi
30K· 18.64 mi
3:14:11
Rank: #23641 (-272)
25K → 30K
37:44 | 12:09/mi
20M
3:30:35
Rank: #23710 (-69)
30K → 20M
16:24 | 12:04/mi
21M
3:42:44
Rank: #23671 (+39)
20M → 21M
12:09 | 12:09/mi
35K· 21.75 mi
3:50:42
Rank: #23645 (+26)
21M → 35K
7:58 | 10:39/mi
23M
4:04:42
Rank: #23603 (+42)
35K → 23M
14:00 | 11:11/mi
24M
4:15:48
Rank: #23592 (+11)
23M → 24M
11:06 | 11:06/mi
40K· 24.85 mi
4:25:41
Rank: #23600 (-8)
24M → 40K
9:53 | 11:34/mi
25.2M
4:30:10
Rank: #23618 (-18)
40K → 25.2M
4:29 | 13:00/mi
Finish· 26.22 mi
4:41:02
Rank: #23623 (-5)
25.2M → Finish
10:52 | 10:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:57
Pace9:59 /mi
2nd Half
Distance13.11 mi
Time2:30:05
Pace11:27 /mi
📊Positive Split: 14.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:2530:189:4530:18
9:45
-
10K
6.21 mi12:22:281:00:219:4330:03
9:40
-0:05
15K
9.32 mi12:53:101:31:039:4630:42
9:53
+0:13
20K
12.43 mi13:26:062:03:599:5932:56
10:36
+0:43
Half
13.11 mi13:33:042:10:579:596:58
10:13
-0:23
25K
15.53 mi13:58:342:36:2710:0425:30
10:31
+0:18
30K
18.64 mi14:36:183:14:1110:2537:44
12:09
+1:38
20M
20.00 mi14:52:423:30:3510:3216:24
12:04
-0:05
21M
21.00 mi15:04:513:42:4410:3612:09
12:09
+0:05
35K
21.75 mi15:12:493:50:4210:367:58
10:39
-1:30
23M
23.00 mi15:26:494:04:4210:3814:00
11:11
+0:32
24M
24.00 mi15:37:554:15:4810:4011:06
11:06
-0:05
40K
24.85 mi15:47:484:25:4110:419:53
11:34
+0:28
25.2M
25.20 mi15:52:174:30:1010:434:29
13:00
+1:26
Finish
26.22 mi16:03:094:41:0210:4410:52
10:40
-2:20

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

9:40 /mi

Average Pace

10:44 /mi

Slowest Pace

13:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:03

32% of race

Time at Steady Pace

1:35:20

34% of race

Time at Slower Pace

1:34:39

34% of race

Average Pace: 10:43 /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 mi11:52:2530:189:4530:18
9:45
#22801
10K
6.21 mi12:22:281:00:219:4330:03
9:40
#22942
15K
9.32 mi12:53:101:31:039:4630:42
9:53
#23069
20K
12.43 mi13:26:062:03:599:5932:56
10:36
#23373
Half
13.11 mi13:33:042:10:579:596:58
10:13
#23389
25K
15.53 mi13:58:342:36:2710:0425:30
10:31
#23369
30K
18.64 mi14:36:183:14:1110:2537:44
12:09
#23641
20M
20.00 mi14:52:423:30:3510:3216:24
12:04
#23710
21M
21.00 mi15:04:513:42:4410:3612:09
12:09
#23671
35K
21.75 mi15:12:493:50:4210:367:58
10:39
#23645
23M
23.00 mi15:26:494:04:4210:3814:00
11:11
#23603
24M
24.00 mi15:37:554:15:4810:4011:06
11:06
#23592
40K
24.85 mi15:47:484:25:4110:419:53
11:34
#23600
25.2M
25.20 mi15:52:174:30:1010:434:29
13:00
#23618
Finish
26.22 mi16:03:094:41:0210:4410:52
10:40
#23623
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi228019278927823262(Top 87%)9478(Top 83%)9478(Top 505%)
10K6.21 mi3.10 mi22942-1419330-529330-5222992(Top 86%)9329(Top 82%)9329(Top 497%)
15K9.32 mi3.11 mi23069-1279389-599389-5923262(Top 87%)9478(Top 83%)9478(Top 505%)
20K12.43 mi3.11 mi23373-3049540-1519540-15124012(Top 90%)9913(Top 87%)9913(Top 528%)
Half13.11 mi0.68 mi23389-169550-109550-1023699(Top 89%)9741(Top 85%)9741(Top 519%)
25K15.53 mi2.42 mi23369+209549+19549+123237(Top 87%)9515(Top 83%)9515(Top 507%)
30K18.64 mi3.11 mi23641-2729722-1739722-17324650(Top 93%)10369(Top 91%)10369(Top 552%)
20M20.00 mi1.36 mi23710-699773-519773-5124289(Top 91%)10229(Top 90%)10229(Top 545%)
21M21.00 mi1.00 mi23671+399755+189755+1822982(Top 86%)9542(Top 84%)9542(Top 508%)
35K21.75 mi0.75 mi23645+269746+99746+922683(Top 85%)9413(Top 82%)9413(Top 501%)
23M23.00 mi1.25 mi23603+429726+209726+2022702(Top 85%)9437(Top 83%)9437(Top 503%)
24M24.00 mi1.00 mi23592+119733-79733-723243(Top 87%)9763(Top 85%)9763(Top 520%)
40K24.85 mi0.85 mi23600-89746-139746-1323307(Top 88%)9829(Top 86%)9829(Top 523%)
25.2M25.20 mi0.35 mi23618-189760-149760-1423984(Top 90%)10174(Top 89%)10174(Top 542%)
Finish26.22 mi1.02 mi23623-59773-139773-1323357(Top 88%)9836(Top 86%)9836(Top 524%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21stories
+97ft-345ft

Overall

23262

Females

9478

F40-44

9478

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

22992

Females

9329

F40-44

9329

10K→15K

6.2 - 9.3 mi

Top 87%
×3stories
+67ft-78ft

Overall

23262

Females

9478

F40-44

9478

15K→20K

9.3 - 12.4 mi

Top 90%
×5stories
+106ft-86ft

Overall

24012

Females

9913

F40-44

9913

20K→Half

12.4 - 13.1 mi

Top 89%
×2stories
+19ft-37ft

Overall

23699

Females

9741

F40-44

9741

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

23237

Females

9515

F40-44

9515

25K→30K

15.5 - 18.6 mi

Top 93%
×9stories
+181ft-148ft

Overall

24650

Females

10369

F40-44

10369

30K→20M

18.6 - 20.0 mi

Top 91%
×5stories
+64ft-50ft

Overall

24289

Females

10229

F40-44

10229

20M→21M

20.0 - 21.0 mi

Top 86%
×8stories
+106ft-24ft

Overall

22982

Females

9542

F40-44

9542

21M→35K

21.0 - 21.8 mi

Top 85%
×7stories
+17ft-86ft

Overall

22683

Females

9413

F40-44

9413

35K→23M

21.8 - 23.0 mi

Top 85%
×5stories
+23ft-63ft

Overall

22702

Females

9437

F40-44

9437

23M→24M

23.0 - 24.0 mi

Top 87%
×6stories
+12ft-82ft

Overall

23243

Females

9763

F40-44

9763

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

23307

Females

9829

F40-44

9829

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

23984

Females

10174

F40-44

10174

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2stories
+22ft-21ft

Overall

23357

Females

9836

F40-44

9836

Passing Analysis

Category:
Athletes Passed
755
Passed By
1577
Net Change
-822
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22801
5K → 10K181322-141#22801#22942
10K → 15K87214-127#22942#23069
15K → 20K42346-304#23069#23373
20K → Half1733-16#23373#23389
Half → 25K9979+20#23389#23369
25K → 30K33305-272#23369#23641
30K → 20M36105-69#23641#23710
20M → 21M6425+39#23710#23671
21M → 35K3610+26#23671#23645
35K → 23M6624+42#23645#23603
23M → 24M3827+11#23603#23592
24M → 40K2331-8#23592#23600
40K → 25.2M624-18#23600#23618
25.2M → Finish2732-5#23618#23623
TOTALS7551577-822
📊

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