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BOSTON MARATHON 2023

Kimberly Merrick

Bib: 17929•F

TX

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 43%
Gender (Female)
#0 / 11423
Top 25%
Division (F18-39)
#0 / 4884
Top 42%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:32/mi
23:24
↑ 97↓ 3451.5%
10K· 6.21 mi
7:24/mi
46:22
↑ 79↓ 1380.4%
15K· 9.32 mi
7:29/mi
1:09:38
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:33:38
↑ 106↓ 860.1%
Half· 13.11 mi
7:40/mi
1:38:52
↑ 19↓ 370.5%
25K· 15.53 mi
8:01/mi
1:58:18
↑ 66↓ 880.2%
30K· 18.64 mi
8:14/mi
2:23:53
↑ 181↓ 1480.2%
20M
8:45/mi
2:35:46
↑ 64↓ 500.2%
21M
8:45/mi
2:44:31
↑ 106↓ 241.6%
35K· 21.75 mi
7:55/mi
2:50:26
↑ 17↓ 861.7%
23M
8:20/mi
3:00:52
↑ 23↓ 630.6%
24M
8:01/mi
3:08:53
↓ 821.3%
40K· 24.85 mi
8:29/mi
3:16:08
↓ 200.3%
25.2M
8:59/mi
3:19:14
↑ 13↓ 160.2%
Finish· 26.22 mi
8:20/mi
3:27:44
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:52
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:48:52
Pace8:18 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:5023:247:3223:24
7:32
-
10K
6.21 mi11:36:4846:227:2822:58
7:24
-0:08
15K
9.32 mi12:00:041:09:387:2823:16
7:29
+0:05
20K
12.43 mi12:24:041:33:387:3224:00
7:43
+0:14
Half
13.11 mi12:29:181:38:527:325:14
7:40
-0:03
25K
15.53 mi12:48:441:58:187:3719:26
8:01
+0:21
30K
18.64 mi13:14:192:23:537:4325:35
8:14
+0:13
20M
20.00 mi13:26:122:35:467:4711:53
8:45
+0:31
21M
21.00 mi13:34:572:44:317:508:45
8:45
0:00
35K
21.75 mi13:40:522:50:267:505:55
7:55
-0:50
23M
23.00 mi13:51:183:00:527:5210:26
8:20
+0:25
24M
24.00 mi13:59:193:08:537:528:01
8:01
-0:19
40K
24.85 mi14:06:343:16:087:537:15
8:29
+0:28
25.2M
25.20 mi14:09:403:19:147:543:06
8:59
+0:30
Finish
26.22 mi14:18:103:27:447:568:30
8:20
-0:39

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

7:24 /mi

Average Pace

7:56 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:52

48% of race

Time at Steady Pace

58:57

28% of race

Time at Slower Pace

49:55

24% of race

Average Pace: 7:55 /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 mi11:13:5023:247:3223:24
7:32
#9925
10K
6.21 mi11:36:4846:227:2822:58
7:24
#9693
15K
9.32 mi12:00:041:09:387:2823:16
7:29
#9792
20K
12.43 mi12:24:041:33:387:3224:00
7:43
#10143
Half
13.11 mi12:29:181:38:527:325:14
7:40
#10220
25K
15.53 mi12:48:441:58:187:3719:26
8:01
#10617
30K
18.64 mi13:14:192:23:537:4325:35
8:14
#10914
20M
20.00 mi13:26:122:35:467:4711:53
8:45
#11262
21M
21.00 mi13:34:572:44:317:508:45
8:45
#11276
35K
21.75 mi13:40:522:50:267:505:55
7:55
#11288
23M
23.00 mi13:51:183:00:527:5210:26
8:20
#11335
24M
24.00 mi13:59:193:08:537:528:01
8:01
#11330
40K
24.85 mi14:06:343:16:087:537:15
8:29
#11409
25.2M
25.20 mi14:09:403:19:147:543:06
8:59
#11420
Finish
26.22 mi14:18:103:27:447:568:30
8:20
#11523
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 mi99251827182710109(Top 38%)1896(Top 17%)1896(Top 39%)
10K6.21 mi3.10 mi9693+2321705+1221705+1229573(Top 36%)1654(Top 14%)1654(Top 34%)
15K9.32 mi3.11 mi9792-991746-411746-4110109(Top 38%)1896(Top 17%)1896(Top 39%)
20K12.43 mi3.11 mi10143-3511897-1511897-15111122(Top 42%)2471(Top 22%)2471(Top 51%)
Half13.11 mi0.68 mi10220-771940-431940-4311693(Top 44%)2737(Top 24%)2737(Top 56%)
25K15.53 mi2.42 mi10617-3972157-2172157-21712871(Top 48%)3554(Top 31%)3554(Top 73%)
30K18.64 mi3.11 mi10914-2972355-1982355-19812571(Top 47%)3501(Top 31%)3501(Top 72%)
20M20.00 mi1.36 mi11262-3482578-2232578-22315160(Top 57%)5098(Top 45%)5098(Top 104%)
21M21.00 mi1.00 mi11276-142608-302608-3011918(Top 45%)3365(Top 29%)3365(Top 69%)
35K21.75 mi0.75 mi11288-122623-152623-1511489(Top 43%)3129(Top 27%)3129(Top 64%)
23M23.00 mi1.25 mi11335-472678-552678-5512137(Top 46%)3587(Top 31%)3587(Top 73%)
24M24.00 mi1.00 mi11330+52697-192697-1911378(Top 43%)3273(Top 29%)3273(Top 67%)
40K24.85 mi0.85 mi11409-792763-662763-6613210(Top 50%)4308(Top 38%)4308(Top 88%)
25.2M25.20 mi0.35 mi11420-112783-202783-2012494(Top 47%)3953(Top 35%)3953(Top 81%)
Finish26.22 mi1.02 mi11523-1032864-812864-8114353(Top 54%)4915(Top 43%)4915(Top 101%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10109

Females

1896

F18-39

1896

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

9573

Females

1654

F18-39

1654

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10109

Females

1896

F18-39

1896

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11122

Females

2471

F18-39

2471

20K→Half

12.4 - 13.1 mi

Top 44%
×2story building
+19ft-37ft

Overall

11693

Females

2737

F18-39

2737

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

12871

Females

3554

F18-39

3554

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

12571

Females

3501

F18-39

3501

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

15160

Females

5098

F18-39

5098

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

11918

Females

3365

F18-39

3365

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

11489

Females

3129

F18-39

3129

35K→23M

21.8 - 23.0 mi

Top 46%
×5story building
+23ft-63ft

Overall

12137

Females

3587

F18-39

3587

23M→24M

23.0 - 24.0 mi

Top 43%
×6story building
+12ft-82ft

Overall

11378

Females

3273

F18-39

3273

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13210

Females

4308

F18-39

4308

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

12494

Females

3953

F18-39

3953

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14353

Females

4915

F18-39

4915

Passing Analysis

Category:
Athletes Passed
1195
Passed By
2793
Net Change
-1598
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9925
5K → 10K443211+232#9925#9693
10K → 15K125224-99#9693#9792
15K → 20K69420-351#9792#10143
20K → Half1188-77#10143#10220
Half → 25K46443-397#10220#10617
25K → 30K97394-297#10617#10914
30K → 20M28376-348#10914#11262
20M → 21M8195-14#11262#11276
21M → 35K4254-12#11276#11288
35K → 23M77124-47#11288#11335
23M → 24M5954+5#11335#11330
24M → 40K42121-79#11330#11409
40K → 25.2M3243-11#11409#11420
25.2M → Finish43146-103#11420#11523
TOTALS11952793-1598
📊

Passing Visuals

Category:
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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