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BOSTON MARATHON 2023

Anne Kemmerer

Bib: 16731•F

TN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 41%
Gender (Female)
#0 / 11423
Top 22%
Masters (Masters Women)
#0 / 6539
Top 10%
Division (F40-44)
#0 / 1878
Top 21%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:02
Rank: #11790
Start → 5K
24:02 | 7:44/mi
10K· 6.21 mi
47:35
Rank: #11419 (+371)
5K → 10K
23:33 | 7:35/mi
15K· 9.32 mi
1:11:12
Rank: #11285 (+134)
10K → 15K
23:37 | 7:36/mi
20K· 12.43 mi
1:34:48
Rank: #10954 (+331)
15K → 20K
23:36 | 7:36/mi
Half· 13.11 mi
1:39:55
Rank: #10911 (+43)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
1:58:34
Rank: #10755 (+156)
Half → 25K
18:39 | 7:42/mi
30K· 18.64 mi
2:22:58
Rank: #10522 (+233)
25K → 30K
24:24 | 7:51/mi
20M
2:33:47
Rank: #10475 (+47)
30K → 20M
10:49 | 7:58/mi
21M
2:42:51
Rank: #10651 (-176)
20M → 21M
9:04 | 9:04/mi
35K· 21.75 mi
2:48:33
Rank: #10573 (+78)
21M → 35K
5:42 | 7:37/mi
23M
2:59:05
Rank: #10687 (-114)
35K → 23M
10:32 | 8:25/mi
24M
3:07:05
Rank: #10707 (-20)
23M → 24M
8:00 | 8:00/mi
40K· 24.85 mi
3:14:15
Rank: #10759 (-52)
24M → 40K
7:10 | 8:23/mi
25.2M
3:17:23
Rank: #10790 (-31)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:25:32
Rank: #10839 (-49)
25.2M → Finish
8:09 | 8:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:55
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:45:37
Pace8:03 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5524:027:4424:02
7:44
-
10K
6.21 mi11:38:2847:357:3923:33
7:35
-0:09
15K
9.32 mi12:02:051:11:127:3823:37
7:36
+0:01
20K
12.43 mi12:25:411:34:487:3823:36
7:36
0:00
Half
13.11 mi12:30:481:39:557:375:07
7:30
-0:06
25K
15.53 mi12:49:271:58:347:3818:39
7:42
+0:12
30K
18.64 mi13:13:512:22:587:4024:24
7:51
+0:09
20M
20.00 mi13:24:402:33:477:4110:49
7:58
+0:07
21M
21.00 mi13:33:442:42:517:459:04
9:04
+1:06
35K
21.75 mi13:39:262:48:337:455:42
7:37
-1:27
23M
23.00 mi13:49:582:59:057:4710:32
8:25
+0:48
24M
24.00 mi13:57:583:07:057:488:00
8:00
-0:25
40K
24.85 mi14:05:083:14:157:497:10
8:23
+0:23
25.2M
25.20 mi14:08:163:17:237:503:08
9:05
+0:42
Finish
26.22 mi14:16:253:25:327:518:09
8:00
-1:05

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

7:30 /mi

Average Pace

7:51 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:53

37% of race

Time at Steady Pace

1:39:45

49% of race

Time at Slower Pace

29:54

15% of race

Average Pace: 7:50 /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 mi11:14:5524:027:4424:02
7:44
#11790
10K
6.21 mi11:38:2847:357:3923:33
7:35
#11419
15K
9.32 mi12:02:051:11:127:3823:37
7:36
#11285
20K
12.43 mi12:25:411:34:487:3823:36
7:36
#10954
Half
13.11 mi12:30:481:39:557:375:07
7:30
#10911
25K
15.53 mi12:49:271:58:347:3818:39
7:42
#10755
30K
18.64 mi13:13:512:22:587:4024:24
7:51
#10522
20M
20.00 mi13:24:402:33:477:4110:49
7:58
#10475
21M
21.00 mi13:33:442:42:517:459:04
9:04
#10651
35K
21.75 mi13:39:262:48:337:455:42
7:37
#10573
23M
23.00 mi13:49:582:59:057:4710:32
8:25
#10687
24M
24.00 mi13:57:583:07:057:488:00
8:00
#10707
40K
24.85 mi14:05:083:14:157:497:10
8:23
#10759
25.2M
25.20 mi14:08:163:17:237:503:08
9:05
#10790
Finish
26.22 mi14:16:253:25:327:518:09
8:00
#10839
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi117902746274611044(Top 41%)2373(Top 21%)2373(Top 126%)
10K6.21 mi3.10 mi11419+3712559+1872559+18711153(Top 42%)2404(Top 21%)2404(Top 128%)
15K9.32 mi3.11 mi11285+1342483+762483+7611044(Top 41%)2373(Top 21%)2373(Top 126%)
20K12.43 mi3.11 mi10954+3312314+1692314+16910081(Top 38%)1954(Top 17%)1954(Top 104%)
Half13.11 mi0.68 mi10911+432293+212293+2110308(Top 39%)2041(Top 18%)2041(Top 109%)
25K15.53 mi2.42 mi10755+1562225+682225+6810253(Top 39%)2116(Top 19%)2116(Top 113%)
30K18.64 mi3.11 mi10522+2332165+602165+609786(Top 37%)2063(Top 18%)2063(Top 110%)
20M20.00 mi1.36 mi10475+472161+42161+410006(Top 38%)2237(Top 20%)2237(Top 119%)
21M21.00 mi1.00 mi10651-1762275-1142275-11413797(Top 52%)4375(Top 38%)4375(Top 233%)
35K21.75 mi0.75 mi10573+782262+132262+139448(Top 35%)2125(Top 19%)2125(Top 113%)
23M23.00 mi1.25 mi10687-1142350-882350-8812664(Top 48%)3877(Top 34%)3877(Top 206%)
24M24.00 mi1.00 mi10707-202382-322382-3211248(Top 42%)3210(Top 28%)3210(Top 171%)
40K24.85 mi0.85 mi10759-522428-462428-4612590(Top 47%)3982(Top 35%)3982(Top 212%)
25.2M25.20 mi0.35 mi10790-312458-302458-3013023(Top 49%)4221(Top 37%)4221(Top 225%)
Finish26.22 mi1.02 mi10839-492515-572515-5712134(Top 46%)3763(Top 33%)3763(Top 200%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

11044

Females

2373

F40-44

2373

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11153

Females

2404

F40-44

2404

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

11044

Females

2373

F40-44

2373

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10081

Females

1954

F40-44

1954

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10308

Females

2041

F40-44

2041

Half→25K

13.1 - 15.5 mi

Top 39%
×4stories
+66ft-88ft

Overall

10253

Females

2116

F40-44

2116

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

9786

Females

2063

F40-44

2063

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10006

Females

2237

F40-44

2237

20M→21M

20.0 - 21.0 mi

Top 52%
×8stories
+106ft-24ft

Overall

13797

Females

4375

F40-44

4375

21M→35K

21.0 - 21.8 mi

Top 35%
×7stories
+17ft-86ft

Overall

9448

Females

2125

F40-44

2125

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

12664

Females

3877

F40-44

3877

23M→24M

23.0 - 24.0 mi

Top 42%
×6stories
+12ft-82ft

Overall

11248

Females

3210

F40-44

3210

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12590

Females

3982

F40-44

3982

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13023

Females

4221

F40-44

4221

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

12134

Females

3763

F40-44

3763

Passing Analysis

Category:
Athletes Passed
2159*
Passed By
1208
Net Change
+951
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11790
5K → 10K524153+371#11790#11419
10K → 15K251117+134#11419#11285
15K → 20K36534+331#11285#10954
20K → Half507+43#10954#10911
Half → 25K20044+156#10911#10755
25K → 30K29966+233#10755#10522
30K → 20M98*51+47#10522#10475
20M → 21M37213-176#10475#10651
21M → 35K9618+78#10651#10573
35K → 23M50164-114#10573#10687
23M → 24M5878-20#10687#10707
24M → 40K56108-52#10707#10759
40K → 25.2M1849-31#10759#10790
25.2M → Finish57106-49#10790#10839
TOTALS2159*1208+951

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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