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BOSTON MARATHON 2023

Liz Lamphere

Bib: 26418•F

CT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:48
Rank: #21444
Start → 5K
28:48 | 9:16/mi
10K· 6.21 mi
59:21
Rank: #22470 (-1026)
5K → 10K
30:33 | 9:50/mi
15K· 9.32 mi
1:29:55
Rank: #22720 (-250)
10K → 15K
30:34 | 9:50/mi
20K· 12.43 mi
2:01:26
Rank: #22853 (-133)
15K → 20K
31:31 | 10:09/mi
Half· 13.11 mi
2:08:13
Rank: #22873 (-20)
20K → Half
6:47 | 9:57/mi
25K· 15.53 mi
2:33:12
Rank: #22877 (-4)
Half → 25K
24:59 | 10:18/mi
30K· 18.64 mi
3:06:13
Rank: #22779 (+98)
25K → 30K
33:01 | 10:38/mi
20M
3:20:46
Rank: #22724 (+55)
30K → 20M
14:33 | 10:42/mi
21M
3:32:01
Rank: #22656 (+68)
20M → 21M
11:15 | 11:15/mi
35K· 21.75 mi
3:39:50
Rank: #22630 (+26)
21M → 35K
7:49 | 10:27/mi
23M
3:53:05
Rank: #22562 (+68)
35K → 23M
13:15 | 10:35/mi
24M
4:03:35
Rank: #22536 (+26)
23M → 24M
10:30 | 10:30/mi
40K· 24.85 mi
4:12:47
Rank: #22506 (+30)
24M → 40K
9:12 | 10:46/mi
25.2M
4:16:50
Rank: #22500 (+6)
40K → 25.2M
4:03 | 11:45/mi
Finish· 26.22 mi
4:27:34
Rank: #22525 (-25)
25.2M → Finish
10:44 | 10:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:13
Pace9:47 /mi
2nd Half
Distance13.11 mi
Time2:19:21
Pace10:38 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:35:2128:489:1628:48
9:16
-
10K
6.21 mi11:05:5459:219:3330:33
9:50
+0:34
15K
9.32 mi11:36:281:29:559:3930:34
9:50
0:00
20K
12.43 mi12:07:592:01:269:4631:31
10:09
+0:19
Half
13.11 mi12:14:462:08:139:476:47
9:57
-0:12
25K
15.53 mi12:39:452:33:129:5224:59
10:18
+0:21
30K
18.64 mi13:12:463:06:139:5933:01
10:38
+0:20
20M
20.00 mi13:27:193:20:4610:0214:33
10:42
+0:04
21M
21.00 mi13:38:343:32:0110:0611:15
11:15
+0:33
35K
21.75 mi13:46:233:39:5010:067:49
10:27
-0:48
23M
23.00 mi13:59:383:53:0510:0813:15
10:35
+0:08
24M
24.00 mi14:10:084:03:3510:0910:30
10:30
-0:05
40K
24.85 mi14:19:204:12:4710:109:12
10:46
+0:16
25.2M
25.20 mi14:23:234:16:5010:124:03
11:45
+0:59
Finish
26.22 mi14:34:074:27:3410:1310:44
10:32
-1:13

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

9:16 /mi

Average Pace

10:13 /mi

Slowest Pace

11:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:13

48% of race

Time at Steady Pace

2:04:03

46% of race

Time at Slower Pace

15:18

6% of race

Average Pace: 10:12 /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 mi10:35:2128:489:1628:48
9:16
#21444
10K
6.21 mi11:05:5459:219:3330:33
9:50
#22470
15K
9.32 mi11:36:281:29:559:3930:34
9:50
#22720
20K
12.43 mi12:07:592:01:269:4631:31
10:09
#22853
Half
13.11 mi12:14:462:08:139:476:47
9:57
#22873
25K
15.53 mi12:39:452:33:129:5224:59
10:18
#22877
30K
18.64 mi13:12:463:06:139:5933:01
10:38
#22779
20M
20.00 mi13:27:193:20:4610:0214:33
10:42
#22724
21M
21.00 mi13:38:343:32:0110:0611:15
11:15
#22656
35K
21.75 mi13:46:233:39:5010:067:49
10:27
#22630
23M
23.00 mi13:59:383:53:0510:0813:15
10:35
#22562
24M
24.00 mi14:10:084:03:3510:0910:30
10:30
#22536
40K
24.85 mi14:19:204:12:4710:109:12
10:46
#22506
25.2M
25.20 mi14:23:234:16:5010:124:03
11:45
#22500
Finish
26.22 mi14:34:074:27:3410:1310:44
10:32
#22525
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi214448606860623152(Top 87%)9425(Top 83%)9425(Top 519%)
10K6.21 mi3.10 mi22470-10269087-4819087-48123349(Top 88%)9538(Top 83%)9538(Top 525%)
15K9.32 mi3.11 mi22720-2509195-1089195-10823152(Top 87%)9425(Top 83%)9425(Top 519%)
20K12.43 mi3.11 mi22853-1339274-799274-7923199(Top 87%)9450(Top 83%)9450(Top 520%)
Half13.11 mi0.68 mi22873-209278-49278-423168(Top 87%)9447(Top 83%)9447(Top 520%)
25K15.53 mi2.42 mi22877-49297-199297-1922852(Top 86%)9300(Top 81%)9300(Top 512%)
30K18.64 mi3.11 mi22779+989275+229275+2222469(Top 84%)9163(Top 80%)9163(Top 504%)
20M20.00 mi1.36 mi22724+559255+209255+2022180(Top 83%)9083(Top 80%)9083(Top 500%)
21M21.00 mi1.00 mi22656+689228+279228+2721388(Top 80%)8679(Top 76%)8679(Top 478%)
35K21.75 mi0.75 mi22630+269223+59223+522294(Top 84%)9212(Top 81%)9212(Top 507%)
23M23.00 mi1.25 mi22562+689191+329191+3221529(Top 81%)8807(Top 77%)8807(Top 485%)
24M24.00 mi1.00 mi22536+269184+79184+722051(Top 83%)9127(Top 80%)9127(Top 502%)
40K24.85 mi0.85 mi22506+309173+119173+1121868(Top 82%)9080(Top 79%)9080(Top 500%)
25.2M25.20 mi0.35 mi22500+69174-19174-122070(Top 83%)9165(Top 80%)9165(Top 504%)
Finish26.22 mi1.02 mi22525-259199-259199-2523076(Top 87%)9685(Top 85%)9685(Top 533%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21stories
+97ft-345ft

Overall

23152

Females

9425

F45-49

9425

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

23349

Females

9538

F45-49

9538

10K→15K

6.2 - 9.3 mi

Top 87%
×3stories
+67ft-78ft

Overall

23152

Females

9425

F45-49

9425

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

23199

Females

9450

F45-49

9450

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

23168

Females

9447

F45-49

9447

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

22852

Females

9300

F45-49

9300

25K→30K

15.5 - 18.6 mi

Top 84%
×9stories
+181ft-148ft

Overall

22469

Females

9163

F45-49

9163

30K→20M

18.6 - 20.0 mi

Top 83%
×5stories
+64ft-50ft

Overall

22180

Females

9083

F45-49

9083

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

21388

Females

8679

F45-49

8679

21M→35K

21.0 - 21.8 mi

Top 84%
×7stories
+17ft-86ft

Overall

22294

Females

9212

F45-49

9212

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

21529

Females

8807

F45-49

8807

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

22051

Females

9127

F45-49

9127

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21868

Females

9080

F45-49

9080

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22070

Females

9165

F45-49

9165

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2stories
+22ft-21ft

Overall

23076

Females

9685

F45-49

9685

Passing Analysis

Category:
Athletes Passed
921
Passed By
2002
Net Change
-1081
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21444
5K → 10K231049-1026#21444#22470
10K → 15K73323-250#22470#22720
15K → 20K89222-133#22720#22853
20K → Half1535-20#22853#22873
Half → 25K96100-4#22873#22877
25K → 30K17577+98#22877#22779
30K → 20M8530+55#22779#22724
20M → 21M8113+68#22724#22656
21M → 35K5024+26#22656#22630
35K → 23M9830+68#22630#22562
23M → 24M4418+26#22562#22536
24M → 40K4111+30#22536#22506
40K → 25.2M1711+6#22506#22500
25.2M → Finish3459-25#22500#22525
TOTALS9212002-1081
📊

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