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BOSTON MARATHON 2023

Rachel Lamm

Bib: 9015•F

NC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 34%
Gender (Female)
#0 / 11423
Top 15%
Division (F18-39)
#0 / 4884
Top 27%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:08
Rank: #7049
Start → 5K
22:08 | 7:07/mi
10K· 6.21 mi
43:51
Rank: #6844 (+205)
5K → 10K
21:43 | 6:59/mi
15K· 9.32 mi
1:05:46
Rank: #6820 (+24)
10K → 15K
21:55 | 7:03/mi
20K· 12.43 mi
1:28:08
Rank: #6889 (-69)
15K → 20K
22:22 | 7:12/mi
Half· 13.11 mi
1:33:03
Rank: #6921 (-32)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:51:12
Rank: #7114 (-193)
Half → 25K
18:09 | 7:29/mi
30K· 18.64 mi
2:16:23
Rank: #7754 (-640)
25K → 30K
25:11 | 8:06/mi
20M
2:28:29
Rank: #8348 (-594)
30K → 20M
12:06 | 8:54/mi
21M
2:38:08
Rank: #8892 (-544)
20M → 21M
9:39 | 9:39/mi
35K· 21.75 mi
2:44:02
Rank: #8961 (-69)
21M → 35K
5:54 | 7:53/mi
23M
2:54:01
Rank: #8970 (-9)
35K → 23M
9:59 | 7:58/mi
24M
3:01:43
Rank: #8960 (+10)
23M → 24M
7:42 | 7:42/mi
40K· 24.85 mi
3:08:29
Rank: #8949 (+11)
24M → 40K
6:46 | 7:55/mi
25.2M
3:11:34
Rank: #8990 (-41)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:19:29
Rank: #9045 (-55)
25.2M → Finish
7:55 | 7:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:03
Pace7:06 /mi
2nd Half
Distance13.11 mi
Time1:46:26
Pace8:07 /mi
📊Positive Split: 14.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:4222:087:0722:08
7:07
-
10K
6.21 mi11:09:2543:517:0321:43
6:59
-0:08
15K
9.32 mi11:31:201:05:467:0321:55
7:03
+0:04
20K
12.43 mi11:53:421:28:087:0622:22
7:12
+0:09
Half
13.11 mi11:58:371:33:037:064:55
7:12
0:00
25K
15.53 mi12:16:461:51:127:1018:09
7:29
+0:17
30K
18.64 mi12:41:572:16:237:1925:11
8:06
+0:37
20M
20.00 mi12:54:032:28:297:2512:06
8:54
+0:48
21M
21.00 mi13:03:422:38:087:329:39
9:39
+0:45
35K
21.75 mi13:09:362:44:027:335:54
7:53
-1:46
23M
23.00 mi13:19:352:54:017:349:59
7:58
+0:05
24M
24.00 mi13:27:173:01:437:347:42
7:42
-0:16
40K
24.85 mi13:34:033:08:297:356:46
7:55
+0:13
25.2M
25.20 mi13:37:083:11:347:363:05
8:56
+1:01
Finish
26.22 mi13:45:033:19:297:377:55
7:46
-1:10

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

6:59 /mi

Average Pace

7:37 /mi

Slowest Pace

9:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:03

47% of race

Time at Steady Pace

1:21:36

41% of race

Time at Slower Pace

24:50

12% of race

Average Pace: 7:36 /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 mi10:47:4222:087:0722:08
7:07
#7049
10K
6.21 mi11:09:2543:517:0321:43
6:59
#6844
15K
9.32 mi11:31:201:05:467:0321:55
7:03
#6820
20K
12.43 mi11:53:421:28:087:0622:22
7:12
#6889
Half
13.11 mi11:58:371:33:037:064:55
7:12
#6921
25K
15.53 mi12:16:461:51:127:1018:09
7:29
#7114
30K
18.64 mi12:41:572:16:237:1925:11
8:06
#7754
20M
20.00 mi12:54:032:28:297:2512:06
8:54
#8348
21M
21.00 mi13:03:422:38:087:329:39
9:39
#8892
35K
21.75 mi13:09:362:44:027:335:54
7:53
#8961
23M
23.00 mi13:19:352:54:017:349:59
7:58
#8970
24M
24.00 mi13:27:173:01:437:347:42
7:42
#8960
40K
24.85 mi13:34:033:08:297:356:46
7:55
#8949
25.2M
25.20 mi13:37:083:11:347:363:05
8:56
#8990
Finish
26.22 mi13:45:033:19:297:377:55
7:46
#9045
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi70497337336892(Top 26%)725(Top 6%)725(Top 15%)
10K6.21 mi3.10 mi6844+205686+47686+476773(Top 25%)697(Top 6%)697(Top 14%)
15K9.32 mi3.11 mi6820+24693-7693-76892(Top 26%)725(Top 6%)725(Top 15%)
20K12.43 mi3.11 mi6889-69713-20713-207110(Top 27%)814(Top 7%)814(Top 17%)
Half13.11 mi0.68 mi6921-32724-11724-117998(Top 30%)1107(Top 10%)1107(Top 23%)
25K15.53 mi2.42 mi7114-193788-64788-648703(Top 33%)1432(Top 13%)1432(Top 29%)
30K18.64 mi3.11 mi7754-6401027-2391027-23911687(Top 44%)3007(Top 26%)3007(Top 62%)
20M20.00 mi1.36 mi8348-5941274-2471274-24716028(Top 60%)5584(Top 49%)5584(Top 114%)
21M21.00 mi1.00 mi8892-5441481-2071481-20716649(Top 63%)5981(Top 52%)5981(Top 122%)
35K21.75 mi0.75 mi8961-691526-451526-4511303(Top 42%)3010(Top 26%)3010(Top 62%)
23M23.00 mi1.25 mi8970-91556-301556-309583(Top 36%)2293(Top 20%)2293(Top 47%)
24M24.00 mi1.00 mi8960+101581-251581-259107(Top 34%)2151(Top 19%)2151(Top 44%)
40K24.85 mi0.85 mi8949+111593-121593-129456(Top 36%)2371(Top 21%)2371(Top 49%)
25.2M25.20 mi0.35 mi8990-411615-221615-2212188(Top 46%)3801(Top 33%)3801(Top 78%)
Finish26.22 mi1.02 mi9045-551667-521667-5210459(Top 39%)2912(Top 25%)2912(Top 60%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

6892

Females

725

F18-39

725

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

6773

Females

697

F18-39

697

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

6892

Females

725

F18-39

725

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7110

Females

814

F18-39

814

20K→Half

12.4 - 13.1 mi

Top 30%
×2stories
+19ft-37ft

Overall

7998

Females

1107

F18-39

1107

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

8703

Females

1432

F18-39

1432

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

11687

Females

3007

F18-39

3007

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

16028

Females

5584

F18-39

5584

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

16649

Females

5981

F18-39

5981

21M→35K

21.0 - 21.8 mi

Top 42%
×7stories
+17ft-86ft

Overall

11303

Females

3010

F18-39

3010

35K→23M

21.8 - 23.0 mi

Top 36%
×5stories
+23ft-63ft

Overall

9583

Females

2293

F18-39

2293

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9107

Females

2151

F18-39

2151

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9456

Females

2371

F18-39

2371

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12188

Females

3801

F18-39

3801

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2stories
+22ft-21ft

Overall

10459

Females

2912

F18-39

2912

Passing Analysis

Category:
Athletes Passed
917
Passed By
2913
Net Change
-1996
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7049
5K → 10K313108+205#7049#6844
10K → 15K139115+24#6844#6820
15K → 20K83152-69#6820#6889
20K → Half1042-32#6889#6921
Half → 25K40233-193#6921#7114
25K → 30K27667-640#7114#7754
30K → 20M9603-594#7754#8348
20M → 21M7551-544#8348#8892
21M → 35K2695-69#8892#8961
35K → 23M7281-9#8961#8970
23M → 24M7868+10#8970#8960
24M → 40K5241+11#8960#8949
40K → 25.2M1657-41#8949#8990
25.2M → Finish45100-55#8990#9045
TOTALS9172913-1996
📊

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