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BOSTON MARATHON 2023

Katherine Moxley

Bib: 18131•F

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Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
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
7:35/mi
23:33
↑ 97↓ 3451.5%
10K· 6.21 mi
7:39/mi
47:18
↑ 79↓ 1380.4%
15K· 9.32 mi
7:58/mi
1:12:04
↑ 67↓ 78
20K· 12.43 mi
8:32/mi
1:38:36
↑ 106↓ 860.1%
Half· 13.11 mi
8:20/mi
1:44:17
↑ 19↓ 370.5%
25K· 15.53 mi
9:16/mi
2:06:45
↑ 66↓ 880.2%
30K· 18.64 mi
9:51/mi
2:37:20
↑ 181↓ 1480.2%
20M
10:05/mi
2:51:02
↑ 64↓ 500.2%
21M
12:01/mi
3:03:03
↑ 106↓ 241.6%
35K· 21.75 mi
10:14/mi
3:10:42
↑ 17↓ 861.7%
23M
11:01/mi
3:24:29
↑ 23↓ 630.6%
24M
11:14/mi
3:35:43
↓ 821.3%
40K· 24.85 mi
12:40/mi
3:46:33
↓ 200.3%
25.2M
11:48/mi
3:50:37
↑ 13↓ 160.2%
Finish· 26.22 mi
9:50/mi
4:00:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:17
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time2:16:21
Pace10:24 /mi
📊Positive Split: 30.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:4023:337:3523:33
7:35
-
10K
6.21 mi11:38:2547:187:3723:45
7:39
+0:04
15K
9.32 mi12:03:111:12:047:4424:46
7:58
+0:19
20K
12.43 mi12:29:431:38:367:5626:32
8:32
+0:34
Half
13.11 mi12:35:241:44:177:575:41
8:20
-0:12
25K
15.53 mi12:57:522:06:458:1022:28
9:16
+0:56
30K
18.64 mi13:28:272:37:208:2630:35
9:51
+0:35
20M
20.00 mi13:42:092:51:028:3313:42
10:05
+0:14
21M
21.00 mi13:54:103:03:038:4312:01
12:01
+1:56
35K
21.75 mi14:01:493:10:428:467:39
10:14
-1:47
23M
23.00 mi14:15:363:24:298:5313:47
11:01
+0:47
24M
24.00 mi14:26:503:35:438:5911:14
11:14
+0:13
40K
24.85 mi14:37:403:46:339:0710:50
12:40
+1:26
25.2M
25.20 mi14:41:443:50:379:094:04
11:48
-0:52
Finish
26.22 mi14:51:454:00:389:1110:01
9:50
-1:58

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

7:35 /mi

Average Pace

9:11 /mi

Slowest Pace

12:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:17

43% of race

Time at Steady Pace

1:24:25

35% of race

Time at Slower Pace

51:56

22% of race

Average Pace: 9:11 /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 mi11:14:4023:337:3523:33
7:35
#10372
10K
6.21 mi11:38:2547:187:3723:45
7:39
#11032
15K
9.32 mi12:03:111:12:047:4424:46
7:58
#12099
20K
12.43 mi12:29:431:38:367:5626:32
8:32
#13584
Half
13.11 mi12:35:241:44:177:575:41
8:20
#13748
25K
15.53 mi12:57:522:06:458:1022:28
9:16
#15067
30K
18.64 mi13:28:272:37:208:2630:35
9:51
#16414
20M
20.00 mi13:42:092:51:028:3313:42
10:05
#16850
21M
21.00 mi13:54:103:03:038:4312:01
12:01
#17489
35K
21.75 mi14:01:493:10:428:467:39
10:14
#17741
23M
23.00 mi14:15:363:24:298:5313:47
11:01
#18269
24M
24.00 mi14:26:503:35:438:5911:14
11:14
#18695
40K
24.85 mi14:37:403:46:339:0710:50
12:40
#19210
25.2M
25.20 mi14:41:443:50:379:094:04
11:48
#19302
Finish
26.22 mi14:51:454:00:389:1110:01
9:50
#19419
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi103722029202914174(Top 53%)4191(Top 37%)4191(Top 223%)
10K6.21 mi3.10 mi11032-6602349-3202349-32011767(Top 44%)2743(Top 24%)2743(Top 146%)
15K9.32 mi3.11 mi12099-10672952-6032952-60314174(Top 53%)4191(Top 37%)4191(Top 223%)
20K12.43 mi3.11 mi13584-14853835-8833835-88317138(Top 64%)6017(Top 53%)6017(Top 320%)
Half13.11 mi0.68 mi13748-1643931-963931-9616758(Top 63%)5769(Top 51%)5769(Top 307%)
25K15.53 mi2.42 mi15067-13194751-8204751-82020083(Top 75%)7741(Top 68%)7741(Top 412%)
30K18.64 mi3.11 mi16414-13475634-8835634-88320583(Top 77%)8099(Top 71%)8099(Top 431%)
20M20.00 mi1.36 mi16850-4365887-2535887-25320702(Top 78%)8250(Top 72%)8250(Top 439%)
21M21.00 mi1.00 mi17489-6396288-4016288-40122782(Top 86%)9429(Top 83%)9429(Top 502%)
35K21.75 mi0.75 mi17741-2526452-1646452-16421837(Top 82%)8953(Top 78%)8953(Top 477%)
23M23.00 mi1.25 mi18269-5286771-3196771-31922364(Top 84%)9247(Top 81%)9247(Top 492%)
24M24.00 mi1.00 mi18695-4267023-2527023-25223470(Top 88%)9879(Top 86%)9879(Top 526%)
40K24.85 mi0.85 mi19210-5157317-2947317-29424646(Top 93%)10491(Top 92%)10491(Top 559%)
25.2M25.20 mi0.35 mi19302-927373-567373-5622131(Top 83%)9190(Top 80%)9190(Top 489%)
Finish26.22 mi1.02 mi19419-1177453-807453-8021259(Top 80%)8691(Top 76%)8691(Top 463%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

14174

Females

4191

F40-44

4191

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

11767

Females

2743

F40-44

2743

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

14174

Females

4191

F40-44

4191

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

17138

Females

6017

F40-44

6017

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

16758

Females

5769

F40-44

5769

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

20083

Females

7741

F40-44

7741

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

20583

Females

8099

F40-44

8099

30K→20M

18.6 - 20.0 mi

Top 78%
×5story building
+64ft-50ft

Overall

20702

Females

8250

F40-44

8250

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

22782

Females

9429

F40-44

9429

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

21837

Females

8953

F40-44

8953

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

22364

Females

9247

F40-44

9247

23M→24M

23.0 - 24.0 mi

Top 88%
×6story building
+12ft-82ft

Overall

23470

Females

9879

F40-44

9879

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24646

Females

10491

F40-44

10491

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22131

Females

9190

F40-44

9190

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

21259

Females

8691

F40-44

8691

Passing Analysis

Category:
Athletes Passed
238
Passed By
9285
Net Change
-9047
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10372
5K → 10K89749-660#10372#11032
10K → 15K201087-1067#11032#12099
15K → 20K121497-1485#12099#13584
20K → Half6170-164#13584#13748
Half → 25K131332-1319#13748#15067
25K → 30K131360-1347#15067#16414
30K → 20M12448-436#16414#16850
20M → 21M8647-639#16850#17489
21M → 35K15267-252#17489#17741
35K → 23M15543-528#17741#18269
23M → 24M6432-426#18269#18695
24M → 40K5520-515#18695#19210
40K → 25.2M8100-92#19210#19302
25.2M → Finish16133-117#19302#19419
TOTALS2389285-9047
📊

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