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BOSTON MARATHON 2023

Beth Nixon

Bib: 21555•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 46%
Masters (Masters Women)
#0 / 6539
Top 35%
Division (F50-54)
#0 / 1207
Top 26%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:21
Rank: #17437
Start → 5K
8:29/mi
26:21 split
10K· 6.21 mi
52:03
Rank: #17040 (+397)
5K → 10K
8:16/mi
25:42 split
15K· 9.32 mi
1:18:00
Rank: #16980 (+60)
10K → 15K
8:21/mi
25:57 split
20K· 12.43 mi
1:44:00
Rank: #16744 (+236)
15K → 20K
8:22/mi
26:00 split
Half· 13.11 mi
1:49:36
Rank: #16700 (+44)
20K → Half
8:12/mi
5:36 split
25K· 15.53 mi
2:09:51
Rank: #16470 (+230)
Half → 25K
8:21/mi
20:15 split
30K· 18.64 mi
2:36:47
Rank: #16217 (+253)
25K → 30K
8:40/mi
26:56 split
20M
2:48:31
Rank: #16074 (+143)
30K → 20M
8:38/mi
11:44 split
21M
2:57:51
Rank: #15988 (+86)
20M → 21M
9:20/mi
9:20 split
35K· 21.75 mi
3:04:05
Rank: #15895 (+93)
21M → 35K
8:20/mi
6:14 split
23M
3:14:58
Rank: #15777 (+118)
35K → 23M
8:42/mi
10:53 split
24M
3:23:24
Rank: #15710 (+67)
23M → 24M
8:26/mi
8:26 split
40K· 24.85 mi
3:30:47
Rank: #15650 (+60)
24M → 40K
8:38/mi
7:23 split
25.2M
3:34:07
Rank: #15656 (-6)
40K → 25.2M
9:40/mi
3:20 split
Finish· 26.22 mi
3:42:38
Rank: #15609 (+47)
25.2M → Finish
8:21/mi
8:31 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:36
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time1:53:02
Pace8:37 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:4826:218:2926:21
8:29
-
10K
6.21 mi11:45:3052:038:2325:42
8:16
-0:13
15K
9.32 mi12:11:271:18:008:2225:57
8:21
+0:05
20K
12.43 mi12:37:271:44:008:2226:00
8:22
+0:01
Half
13.11 mi12:43:031:49:368:225:36
8:12
-0:10
25K
15.53 mi13:03:182:09:518:2220:15
8:21
+0:09
30K
18.64 mi13:30:142:36:478:2526:56
8:40
+0:19
20M
20.00 mi13:41:582:48:318:2611:44
8:38
-0:02
21M
21.00 mi13:51:182:57:518:289:20
9:20
+0:42
35K
21.75 mi13:57:323:04:058:286:14
8:20
-1:00
23M
23.00 mi14:08:253:14:588:2910:53
8:42
+0:22
24M
24.00 mi14:16:513:23:248:298:26
8:26
-0:16
40K
24.85 mi14:24:143:30:478:297:23
8:38
+0:12
25.2M
25.20 mi14:27:343:34:078:303:20
9:40
+1:02
Finish
26.22 mi14:36:053:42:388:308:31
8:21
-1:19

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

8:12 /mi

Average Pace

8:30 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:29:58

94% of race

Time at Steady Pace

12:40

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:29 /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 mi11:19:4826:218:2926:21
8:29
#17437
10K
6.21 mi11:45:3052:038:2325:42
8:16
#17040
15K
9.32 mi12:11:271:18:008:2225:57
8:21
#16980
20K
12.43 mi12:37:271:44:008:2226:00
8:22
#16744
Half
13.11 mi12:43:031:49:368:225:36
8:12
#16700
25K
15.53 mi13:03:182:09:518:2220:15
8:21
#16470
30K
18.64 mi13:30:142:36:478:2526:56
8:40
#16217
20M
20.00 mi13:41:582:48:318:2611:44
8:38
#16074
21M
21.00 mi13:51:182:57:518:289:20
9:20
#15988
35K
21.75 mi13:57:323:04:058:286:14
8:20
#15895
23M
23.00 mi14:08:253:14:588:2910:53
8:42
#15777
24M
24.00 mi14:16:513:23:248:298:26
8:26
#15710
40K
24.85 mi14:24:143:30:478:297:23
8:38
#15650
25.2M
25.20 mi14:27:343:34:078:303:20
9:40
#15656
Finish
26.22 mi14:36:053:42:388:308:31
8:21
#15609
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi174376211621116876(Top 63%)5836(Top 51%)5836(Top 484%)
10K6.21 mi3.10 mi17040+3975941+2705941+27016736(Top 63%)5708(Top 50%)5708(Top 473%)
15K9.32 mi3.11 mi16980+605895+465895+4616876(Top 63%)5836(Top 51%)5836(Top 484%)
20K12.43 mi3.11 mi16744+2365767+1285767+12816057(Top 60%)5385(Top 47%)5385(Top 446%)
Half13.11 mi0.68 mi16700+445744+235744+2315908(Top 60%)5240(Top 46%)5240(Top 434%)
25K15.53 mi2.42 mi16470+2305621+1235621+12315292(Top 57%)5016(Top 44%)5016(Top 416%)
30K18.64 mi3.11 mi16217+2535509+1125509+11215330(Top 58%)5130(Top 45%)5130(Top 425%)
20M20.00 mi1.36 mi16074+1435439+705439+7014511(Top 55%)4713(Top 41%)4713(Top 390%)
21M21.00 mi1.00 mi15988+865405+345405+3415198(Top 57%)5170(Top 45%)5170(Top 428%)
35K21.75 mi0.75 mi15895+935368+375368+3714340(Top 54%)4757(Top 42%)4757(Top 394%)
23M23.00 mi1.25 mi15777+1185327+415327+4114358(Top 54%)4831(Top 42%)4831(Top 400%)
24M24.00 mi1.00 mi15710+675307+205307+2014116(Top 53%)4743(Top 42%)4743(Top 393%)
40K24.85 mi0.85 mi15650+605274+335274+3314196(Top 53%)4858(Top 43%)4858(Top 402%)
25.2M25.20 mi0.35 mi15656-65278-45278-415992(Top 60%)5856(Top 51%)5856(Top 485%)
Finish26.22 mi1.02 mi15609+475265+135265+1314485(Top 54%)4993(Top 44%)4993(Top 414%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21story building
+97ft-345ft

Overall

16876

Females

5836

F50-54

5836

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

16736

Females

5708

F50-54

5708

10K→15K

6.2 - 9.3 mi

Top 63%
×3story building
+67ft-78ft

Overall

16876

Females

5836

F50-54

5836

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

16057

Females

5385

F50-54

5385

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

15908

Females

5240

F50-54

5240

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15292

Females

5016

F50-54

5016

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

15330

Females

5130

F50-54

5130

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

14511

Females

4713

F50-54

4713

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

15198

Females

5170

F50-54

5170

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

14340

Females

4757

F50-54

4757

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14358

Females

4831

F50-54

4831

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

14116

Females

4743

F50-54

4743

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14196

Females

4858

F50-54

4858

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

15992

Females

5856

F50-54

5856

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14485

Females

4993

F50-54

4993

Passing Analysis

Category:
Athletes Passed
2559
Passed By
731
Net Change
+1828
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17437
5K → 10K561164+397#17437#17040
10K → 15K229169+60#17040#16980
15K → 20K30064+236#16980#16744
20K → Half5915+44#16744#16700
Half → 25K25929+230#16700#16470
25K → 30K32168+253#16470#16217
30K → 20M15815+143#16217#16074
20M → 21M12539+86#16074#15988
21M → 35K1007+93#15988#15895
35K → 23M14729+118#15895#15777
23M → 24M10740+67#15777#15710
24M → 40K8828+60#15710#15650
40K → 25.2M2430-6#15650#15656
25.2M → Finish8134+47#15656#15609
TOTALS2559731+1828
📊

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