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BOSTON MARATHON 2023

Leah Miller

Bib: 17323•F

TN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 48%
Gender (Female)
#0 / 11423
Top 31%
Division (F18-39)
#0 / 4884
Top 50%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:26
Rank: #12967
Start → 5K
24:26 | 7:52/mi
10K· 6.21 mi
48:52
Rank: #13305 (-338)
5K → 10K
24:26 | 7:52/mi
15K· 9.32 mi
1:13:26
Rank: #13397 (-92)
10K → 15K
24:34 | 7:54/mi
20K· 12.43 mi
1:38:42
Rank: #13635 (-238)
15K → 20K
25:16 | 8:08/mi
Half· 13.11 mi
1:44:08
Rank: #13658 (-23)
20K → Half
5:26 | 7:58/mi
25K· 15.53 mi
2:04:16
Rank: #13873 (-215)
Half → 25K
20:08 | 8:18/mi
30K· 18.64 mi
2:30:05
Rank: #13684 (+189)
25K → 30K
25:49 | 8:18/mi
20M
2:41:37
Rank: #13673 (+11)
30K → 20M
11:32 | 8:29/mi
21M
2:50:28
Rank: #13584 (+89)
20M → 21M
8:51 | 8:51/mi
35K· 21.75 mi
2:56:29
Rank: #13523 (+61)
21M → 35K
6:01 | 8:03/mi
23M
3:06:34
Rank: #13290 (+233)
35K → 23M
10:05 | 8:03/mi
24M
3:14:35
Rank: #13178 (+112)
23M → 24M
8:01 | 8:01/mi
40K· 24.85 mi
3:21:27
Rank: #13044 (+134)
24M → 40K
6:52 | 8:01/mi
25.2M
3:24:07
Rank: #12919 (+125)
40K → 25.2M
2:40 | 7:45/mi
Finish· 26.22 mi
3:32:01
Rank: #12806 (+113)
25.2M → Finish
7:54 | 7:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:08
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:47:53
Pace8:14 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:1624:267:5224:26
7:52
-
10K
6.21 mi11:41:4248:527:5224:26
7:52
0:00
15K
9.32 mi12:06:161:13:267:5324:34
7:54
+0:02
20K
12.43 mi12:31:321:38:427:5725:16
8:08
+0:14
Half
13.11 mi12:36:581:44:087:575:26
7:58
-0:10
25K
15.53 mi12:57:062:04:168:0020:08
8:18
+0:20
30K
18.64 mi13:22:552:30:058:0325:49
8:18
0:00
20M
20.00 mi13:34:272:41:378:0511:32
8:29
+0:11
21M
21.00 mi13:43:182:50:288:078:51
8:51
+0:22
35K
21.75 mi13:49:192:56:298:076:01
8:03
-0:48
23M
23.00 mi13:59:243:06:348:0710:05
8:03
0:00
24M
24.00 mi14:07:253:14:358:068:01
8:01
-0:02
40K
24.85 mi14:14:173:21:278:066:52
8:01
0:00
25.2M
25.20 mi14:16:573:24:078:062:40
7:45
-0:16
Finish
26.22 mi14:24:513:32:018:067:54
7:45
0:00

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

7:45 /mi

Average Pace

8:06 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:23:10

96% of race

Time at Steady Pace

8:51

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:05 /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 mi11:17:1624:267:5224:26
7:52
#12967
10K
6.21 mi11:41:4248:527:5224:26
7:52
#13305
15K
9.32 mi12:06:161:13:267:5324:34
7:54
#13397
20K
12.43 mi12:31:321:38:427:5725:16
8:08
#13635
Half
13.11 mi12:36:581:44:087:575:26
7:58
#13658
25K
15.53 mi12:57:062:04:168:0020:08
8:18
#13873
30K
18.64 mi13:22:552:30:058:0325:49
8:18
#13684
20M
20.00 mi13:34:272:41:378:0511:32
8:29
#13673
21M
21.00 mi13:43:182:50:288:078:51
8:51
#13584
35K
21.75 mi13:49:192:56:298:076:01
8:03
#13523
23M
23.00 mi13:59:243:06:348:0710:05
8:03
#13290
24M
24.00 mi14:07:253:14:358:068:01
8:01
#13178
40K
24.85 mi14:14:173:21:278:066:52
8:01
#13044
25.2M
25.20 mi14:16:573:24:078:062:40
7:45
#12919
Finish
26.22 mi14:24:513:32:018:067:54
7:45
#12806
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi129673419341913629(Top 51%)3853(Top 34%)3853(Top 79%)
10K6.21 mi3.10 mi13305-3383631-2123631-21213694(Top 51%)3854(Top 34%)3854(Top 79%)
15K9.32 mi3.11 mi13397-923690-593690-5913629(Top 51%)3853(Top 34%)3853(Top 79%)
20K12.43 mi3.11 mi13635-2383870-1803870-18014457(Top 54%)4370(Top 38%)4370(Top 89%)
Half13.11 mi0.68 mi13658-233884-143884-1414088(Top 53%)4119(Top 36%)4119(Top 84%)
25K15.53 mi2.42 mi13873-2154038-1544038-15415002(Top 56%)4844(Top 42%)4844(Top 99%)
30K18.64 mi3.11 mi13684+1893949+893949+8913072(Top 49%)3801(Top 33%)3801(Top 78%)
20M20.00 mi1.36 mi13673+113963-143963-1413559(Top 51%)4148(Top 36%)4148(Top 85%)
21M21.00 mi1.00 mi13584+893927+363927+3612561(Top 47%)3715(Top 33%)3715(Top 76%)
35K21.75 mi0.75 mi13523+613897+303897+3012460(Top 47%)3679(Top 32%)3679(Top 75%)
23M23.00 mi1.25 mi13290+2333792+1053792+10510171(Top 38%)2598(Top 23%)2598(Top 53%)
24M24.00 mi1.00 mi13178+1123756+363756+3611415(Top 43%)3309(Top 29%)3309(Top 68%)
40K24.85 mi0.85 mi13044+1343701+553701+5510195(Top 38%)2767(Top 24%)2767(Top 57%)
25.2M25.20 mi0.35 mi12919+1253634+673634+675175(Top 19%)817(Top 7%)817(Top 17%)
Finish26.22 mi1.02 mi12806+1133587+473587+4710265(Top 39%)2842(Top 25%)2842(Top 58%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21stories
+97ft-345ft

Overall

13629

Females

3853

F18-39

3853

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

13694

Females

3854

F18-39

3854

10K→15K

6.2 - 9.3 mi

Top 51%
×3stories
+67ft-78ft

Overall

13629

Females

3853

F18-39

3853

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

14457

Females

4370

F18-39

4370

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

14088

Females

4119

F18-39

4119

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

15002

Females

4844

F18-39

4844

25K→30K

15.5 - 18.6 mi

Top 49%
×9stories
+181ft-148ft

Overall

13072

Females

3801

F18-39

3801

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

13559

Females

4148

F18-39

4148

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

12561

Females

3715

F18-39

3715

21M→35K

21.0 - 21.8 mi

Top 47%
×7stories
+17ft-86ft

Overall

12460

Females

3679

F18-39

3679

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

10171

Females

2598

F18-39

2598

23M→24M

23.0 - 24.0 mi

Top 43%
×6stories
+12ft-82ft

Overall

11415

Females

3309

F18-39

3309

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10195

Females

2767

F18-39

2767

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5175

Females

817

F18-39

817

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2stories
+22ft-21ft

Overall

10265

Females

2842

F18-39

2842

Passing Analysis

Category:
Athletes Passed
1924
Passed By
1763
Net Change
+161
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12967
5K → 10K169507-338#12967#13305
10K → 15K169261-92#13305#13397
15K → 20K112350-238#13397#13635
20K → Half2043-23#13635#13658
Half → 25K75290-215#13658#13873
25K → 30K28091+189#13873#13684
30K → 20M10695+11#13684#13673
20M → 21M13243+89#13673#13584
21M → 35K8524+61#13584#13523
35K → 23M2429+233#13523#13290
23M → 24M14028+112#13290#13178
24M → 40K1395+134#13178#13044
40K → 25.2M1250+125#13044#12919
25.2M → Finish13017+113#12919#12806
TOTALS19241763+161
📊

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