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BOSTON MARATHON 2023

Alexandra Lambert

Bib: 15039•F

PA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 43%
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
26:03
Rank: #16768
Start → 5K
26:03 | 8:23/mi
10K· 6.21 mi
52:22
Rank: #17400 (-632)
5K → 10K
26:19 | 8:28/mi
15K· 9.32 mi
1:17:59
Rank: #16964 (+436)
10K → 15K
25:37 | 8:15/mi
20K· 12.43 mi
1:43:48
Rank: #16644 (+320)
15K → 20K
25:49 | 8:19/mi
Half· 13.11 mi
1:49:25
Rank: #16613 (+31)
20K → Half
5:37 | 8:14/mi
25K· 15.53 mi
2:09:42
Rank: #16404 (+209)
Half → 25K
20:17 | 8:22/mi
30K· 18.64 mi
2:36:12
Rank: #16017 (+387)
25K → 30K
26:30 | 8:32/mi
20M
2:47:28
Rank: #15688 (+329)
30K → 20M
11:16 | 8:17/mi
21M
2:56:25
Rank: #15542 (+146)
20M → 21M
8:57 | 8:57/mi
35K· 21.75 mi
3:02:35
Rank: #15466 (+76)
21M → 35K
6:10 | 8:15/mi
23M
3:13:31
Rank: #15390 (+76)
35K → 23M
10:56 | 8:44/mi
24M
3:21:56
Rank: #15308 (+82)
23M → 24M
8:25 | 8:25/mi
40K· 24.85 mi
3:29:12
Rank: #15225 (+83)
24M → 40K
7:16 | 8:30/mi
25.2M
3:32:19
Rank: #15168 (+57)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
3:40:41
Rank: #15105 (+63)
25.2M → Finish
8:22 | 8:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:25
Pace8:21 /mi
2nd Half
Distance13.11 mi
Time1:51:16
Pace8:29 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:3426:038:2326:03
8:23
-
10K
6.21 mi11:21:5352:228:2626:19
8:28
+0:05
15K
9.32 mi11:47:301:17:598:2225:37
8:15
-0:13
20K
12.43 mi12:13:191:43:488:2125:49
8:19
+0:04
Half
13.11 mi12:18:561:49:258:215:37
8:14
-0:05
25K
15.53 mi12:39:132:09:428:2120:17
8:22
+0:08
30K
18.64 mi13:05:432:36:128:2326:30
8:32
+0:10
20M
20.00 mi13:16:592:47:288:2211:16
8:17
-0:15
21M
21.00 mi13:25:562:56:258:248:57
8:57
+0:40
35K
21.75 mi13:32:063:02:358:246:10
8:15
-0:42
23M
23.00 mi13:43:023:13:318:2510:56
8:44
+0:29
24M
24.00 mi13:51:273:21:568:258:25
8:25
-0:19
40K
24.85 mi13:58:433:29:128:257:16
8:30
+0:05
25.2M
25.20 mi14:01:503:32:198:263:07
9:02
+0:32
Finish
26.22 mi14:10:123:40:418:258:22
8:13
-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

8:13 /mi

Average Pace

8:25 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:41

90% of race

Time at Steady Pace

23:00

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:25 /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 mi10:55:3426:038:2326:03
8:23
#16768
10K
6.21 mi11:21:5352:228:2626:19
8:28
#17400
15K
9.32 mi11:47:301:17:598:2225:37
8:15
#16964
20K
12.43 mi12:13:191:43:488:2125:49
8:19
#16644
Half
13.11 mi12:18:561:49:258:215:37
8:14
#16613
25K
15.53 mi12:39:132:09:428:2120:17
8:22
#16404
30K
18.64 mi13:05:432:36:128:2326:30
8:32
#16017
20M
20.00 mi13:16:592:47:288:2211:16
8:17
#15688
21M
21.00 mi13:25:562:56:258:248:57
8:57
#15542
35K
21.75 mi13:32:063:02:358:246:10
8:15
#15466
23M
23.00 mi13:43:023:13:318:2510:56
8:44
#15390
24M
24.00 mi13:51:273:21:568:258:25
8:25
#15308
40K
24.85 mi13:58:433:29:128:257:16
8:30
#15225
25.2M
25.20 mi14:01:503:32:198:263:07
9:02
#15168
Finish
26.22 mi14:10:123:40:418:258:22
8:13
#15105
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi167685774577416193(Top 61%)5409(Top 47%)5409(Top 111%)
10K6.21 mi3.10 mi17400-6326163-3896163-38918060(Top 68%)6508(Top 57%)6508(Top 133%)
15K9.32 mi3.11 mi16964+4365883+2805883+28016193(Top 61%)5409(Top 47%)5409(Top 111%)
20K12.43 mi3.11 mi16644+3205702+1815702+18115663(Top 59%)5135(Top 45%)5135(Top 105%)
Half13.11 mi0.68 mi16613+315692+105692+1016051(Top 60%)5319(Top 47%)5319(Top 109%)
25K15.53 mi2.42 mi16404+2095579+1135579+11315370(Top 58%)5059(Top 44%)5059(Top 104%)
30K18.64 mi3.11 mi16017+3875388+1915388+19114510(Top 55%)4632(Top 41%)4632(Top 95%)
20M20.00 mi1.36 mi15688+3295200+1885200+18812346(Top 46%)3497(Top 31%)3497(Top 72%)
21M21.00 mi1.00 mi15542+1465141+595141+5913155(Top 49%)4036(Top 35%)4036(Top 83%)
35K21.75 mi0.75 mi15466+765109+325109+3213801(Top 52%)4464(Top 39%)4464(Top 91%)
23M23.00 mi1.25 mi15390+765089+205089+2014605(Top 55%)4958(Top 43%)4958(Top 102%)
24M24.00 mi1.00 mi15308+825048+415048+4114006(Top 53%)4680(Top 41%)4680(Top 96%)
40K24.85 mi0.85 mi15225+835008+405008+4013371(Top 50%)4407(Top 39%)4407(Top 90%)
25.2M25.20 mi0.35 mi15168+574988+204988+2012830(Top 48%)4163(Top 36%)4163(Top 85%)
Finish26.22 mi1.02 mi15105+634968+204968+2013543(Top 51%)4498(Top 39%)4498(Top 92%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

16193

Females

5409

F18-39

5409

5K→10K

3.1 - 6.2 mi

Top 68%
×5stories
+79ft-138ft

Overall

18060

Females

6508

F18-39

6508

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

16193

Females

5409

F18-39

5409

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

15663

Females

5135

F18-39

5135

20K→Half

12.4 - 13.1 mi

Top 60%
×2stories
+19ft-37ft

Overall

16051

Females

5319

F18-39

5319

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

15370

Females

5059

F18-39

5059

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

14510

Females

4632

F18-39

4632

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12346

Females

3497

F18-39

3497

20M→21M

20.0 - 21.0 mi

Top 49%
×8stories
+106ft-24ft

Overall

13155

Females

4036

F18-39

4036

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

13801

Females

4464

F18-39

4464

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

14605

Females

4958

F18-39

4958

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

14006

Females

4680

F18-39

4680

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13371

Females

4407

F18-39

4407

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12830

Females

4163

F18-39

4163

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2stories
+22ft-21ft

Overall

13543

Females

4498

F18-39

4498

Passing Analysis

Category:
Athletes Passed
2764
Passed By
1101
Net Change
+1663
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16768
5K → 10K111743-632#16768#17400
10K → 15K48953+436#17400#16964
15K → 20K36545+320#16964#16644
20K → Half4615+31#16644#16613
Half → 25K25344+209#16613#16404
25K → 30K41528+387#16404#16017
30K → 20M3301+329#16017#15688
20M → 21M16620+146#15688#15542
21M → 35K9115+76#15542#15466
35K → 23M12044+76#15466#15390
23M → 24M11028+82#15390#15308
24M → 40K10320+83#15308#15225
40K → 25.2M7013+57#15225#15168
25.2M → Finish9532+63#15168#15105
TOTALS27641101+1663
📊

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