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BOSTON MARATHON 2023

Allison Loudermilk

Bib: 17413•F

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
8:41/mi
26:58
↑ 97↓ 3451.5%
10K· 6.21 mi
8:44/mi
54:06
↑ 79↓ 1380.4%
15K· 9.32 mi
8:49/mi
1:21:28
↑ 67↓ 78
20K· 12.43 mi
9:05/mi
1:49:42
↑ 106↓ 860.1%
Half· 13.11 mi
8:58/mi
1:55:49
↑ 19↓ 370.5%
25K· 15.53 mi
9:14/mi
2:18:12
↑ 66↓ 880.2%
30K· 18.64 mi
9:26/mi
2:47:30
↑ 181↓ 1480.2%
20M
9:21/mi
3:00:12
↑ 64↓ 500.2%
21M
9:59/mi
3:10:11
↑ 106↓ 241.6%
35K· 21.75 mi
9:12/mi
3:17:04
↑ 17↓ 861.7%
23M
9:47/mi
3:29:19
↑ 23↓ 630.6%
24M
9:15/mi
3:38:34
↓ 821.3%
40K· 24.85 mi
9:41/mi
3:46:51
↓ 200.3%
25.2M
9:54/mi
3:50:16
↑ 13↓ 160.2%
Finish· 26.22 mi
8:58/mi
3:59:24
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:49
Pace8:50 /mi
2nd Half
Distance13.11 mi
Time2:03:35
Pace9:26 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:2826:588:4126:58
8:41
-
10K
6.21 mi11:47:3654:068:4227:08
8:44
+0:03
15K
9.32 mi12:14:581:21:288:4427:22
8:49
+0:05
20K
12.43 mi12:43:121:49:428:5028:14
9:05
+0:16
Half
13.11 mi12:49:191:55:498:506:07
8:58
-0:07
25K
15.53 mi13:11:422:18:128:5422:23
9:14
+0:16
30K
18.64 mi13:41:002:47:308:5929:18
9:26
+0:12
20M
20.00 mi13:53:423:00:129:0112:42
9:21
-0:05
21M
21.00 mi14:03:413:10:119:039:59
9:59
+0:38
35K
21.75 mi14:10:343:17:049:046:53
9:12
-0:47
23M
23.00 mi14:22:493:29:199:0612:15
9:47
+0:35
24M
24.00 mi14:32:043:38:349:069:15
9:15
-0:32
40K
24.85 mi14:40:213:46:519:088:17
9:41
+0:26
25.2M
25.20 mi14:43:463:50:169:083:25
9:54
+0:13
Finish
26.22 mi14:52:543:59:249:089:08
8:58
-0:56

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

8:41 /mi

Average Pace

9:08 /mi

Slowest Pace

9:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:25:28

86% of race

Time at Steady Pace

33:56

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:08 /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 mi11:20:2826:588:4126:58
8:41
#18758
10K
6.21 mi11:47:3654:068:4227:08
8:44
#19141
15K
9.32 mi12:14:581:21:288:4427:22
8:49
#19275
20K
12.43 mi12:43:121:49:428:5028:14
9:05
#19466
Half
13.11 mi12:49:191:55:498:506:07
8:58
#19521
25K
15.53 mi13:11:422:18:128:5422:23
9:14
#19607
30K
18.64 mi13:41:002:47:308:5929:18
9:26
#19531
20M
20.00 mi13:53:423:00:129:0112:42
9:21
#19413
21M
21.00 mi14:03:413:10:119:039:59
9:59
#19309
35K
21.75 mi14:10:343:17:049:046:53
9:12
#19299
23M
23.00 mi14:22:493:29:199:0612:15
9:47
#19307
24M
24.00 mi14:32:043:38:349:069:15
9:15
#19269
40K
24.85 mi14:40:213:46:519:088:17
9:41
#19258
25.2M
25.20 mi14:43:463:50:169:083:25
9:54
#19229
Finish
26.22 mi14:52:543:59:249:089:08
8:58
#19201
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi187587048704819578(Top 74%)7431(Top 65%)7431(Top 409%)
10K6.21 mi3.10 mi19141-3837242-1947242-19419606(Top 74%)7453(Top 65%)7453(Top 410%)
15K9.32 mi3.11 mi19275-1347301-597301-5919578(Top 74%)7431(Top 65%)7431(Top 409%)
20K12.43 mi3.11 mi19466-1917408-1077408-10720088(Top 75%)7717(Top 68%)7717(Top 425%)
Half13.11 mi0.68 mi19521-557441-337441-3320318(Top 76%)7853(Top 69%)7853(Top 432%)
25K15.53 mi2.42 mi19607-867489-487489-4819962(Top 75%)7665(Top 67%)7665(Top 422%)
30K18.64 mi3.11 mi19531+767444+457444+4519183(Top 72%)7297(Top 64%)7297(Top 402%)
20M20.00 mi1.36 mi19413+1187399+457399+4518237(Top 69%)6874(Top 60%)6874(Top 378%)
21M21.00 mi1.00 mi19309+1047347+527347+5217996(Top 68%)6761(Top 59%)6761(Top 372%)
35K21.75 mi0.75 mi19299+107349-27349-218767(Top 70%)7257(Top 64%)7257(Top 399%)
23M23.00 mi1.25 mi19307-87358-97358-919393(Top 73%)7625(Top 67%)7625(Top 420%)
24M24.00 mi1.00 mi19269+387345+137345+1318282(Top 69%)7050(Top 62%)7050(Top 388%)
40K24.85 mi0.85 mi19258+117344+17344+118998(Top 71%)7494(Top 66%)7494(Top 412%)
25.2M25.20 mi0.35 mi19229+297332+127332+1217091(Top 64%)6483(Top 57%)6483(Top 357%)
Finish26.22 mi1.02 mi19201+287328+47328+417817(Top 67%)6821(Top 60%)6821(Top 375%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

19578

Females

7431

F45-49

7431

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19606

Females

7453

F45-49

7453

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

19578

Females

7431

F45-49

7431

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

20088

Females

7717

F45-49

7717

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

20318

Females

7853

F45-49

7853

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

19962

Females

7665

F45-49

7665

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

19183

Females

7297

F45-49

7297

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18237

Females

6874

F45-49

6874

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

17996

Females

6761

F45-49

6761

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

18767

Females

7257

F45-49

7257

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

19393

Females

7625

F45-49

7625

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

18282

Females

7050

F45-49

7050

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

18998

Females

7494

F45-49

7494

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

17091

Females

6483

F45-49

6483

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

17817

Females

6821

F45-49

6821

Passing Analysis

Category:
Athletes Passed
1350
Passed By
1793
Net Change
-443
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18758
5K → 10K184567-383#18758#19141
10K → 15K126260-134#19141#19275
15K → 20K104295-191#19275#19466
20K → Half1065-55#19466#19521
Half → 25K97183-86#19521#19607
25K → 30K196120+76#19607#19531
30K → 20M14426+118#19531#19413
20M → 21M13834+104#19413#19309
21M → 35K4434+10#19309#19299
35K → 23M6775-8#19299#19307
23M → 24M8042+38#19307#19269
24M → 40K5039+11#19269#19258
40K → 25.2M4011+29#19258#19229
25.2M → Finish7042+28#19229#19201
TOTALS13501793-443
📊

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