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BOSTON MARATHON 2023

Janet Fox

Bib: 23602•F

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:14
Rank: #21833
Start → 5K
29:14 | 9:25/mi
10K· 6.21 mi
58:40
Rank: #22180 (-347)
5K → 10K
29:26 | 9:28/mi
15K· 9.32 mi
1:28:06
Rank: #22160 (+20)
10K → 15K
29:26 | 9:28/mi
20K· 12.43 mi
1:58:13
Rank: #22156 (+4)
15K → 20K
30:07 | 9:42/mi
Half· 13.11 mi
2:05:15
Rank: #22264 (-108)
20K → Half
7:02 | 10:19/mi
25K· 15.53 mi
2:28:44
Rank: #22112 (+152)
Half → 25K
23:29 | 9:41/mi
30K· 18.64 mi
3:00:10
Rank: #21961 (+151)
25K → 30K
31:26 | 10:07/mi
20M
3:14:15
Rank: #21914 (+47)
30K → 20M
14:05 | 10:22/mi
21M
3:24:38
Rank: #21780 (+134)
20M → 21M
10:23 | 10:23/mi
35K· 21.75 mi
3:31:54
Rank: #21735 (+45)
21M → 35K
7:16 | 9:43/mi
23M
3:44:23
Rank: #21622 (+113)
35K → 23M
12:29 | 9:58/mi
24M
3:54:14
Rank: #21558 (+64)
23M → 24M
9:51 | 9:51/mi
40K· 24.85 mi
4:02:40
Rank: #21486 (+72)
24M → 40K
8:26 | 9:52/mi
25.2M
4:06:19
Rank: #21456 (+30)
40K → 25.2M
3:39 | 10:35/mi
Finish· 26.22 mi
4:16:13
Rank: #21417 (+39)
25.2M → Finish
9:54 | 9:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:15
Pace9:33 /mi
2nd Half
Distance13.11 mi
Time2:10:58
Pace9:59 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:3129:149:2529:14
9:25
-
10K
6.21 mi11:53:5758:409:2629:26
9:28
+0:03
15K
9.32 mi12:23:231:28:069:2729:26
9:28
0:00
20K
12.43 mi12:53:301:58:139:3130:07
9:42
+0:14
Half
13.11 mi13:00:322:05:159:337:02
10:19
+0:37
25K
15.53 mi13:24:012:28:449:3423:29
9:41
-0:38
30K
18.64 mi13:55:273:00:109:4031:26
10:07
+0:26
20M
20.00 mi14:09:323:14:159:4314:05
10:22
+0:15
21M
21.00 mi14:19:553:24:389:4510:23
10:23
+0:01
35K
21.75 mi14:27:113:31:549:457:16
9:43
-0:40
23M
23.00 mi14:39:403:44:239:4512:29
9:58
+0:15
24M
24.00 mi14:49:313:54:149:469:51
9:51
-0:07
40K
24.85 mi14:57:574:02:409:468:26
9:52
+0:01
25.2M
25.20 mi15:01:364:06:199:463:39
10:35
+0:43
Finish
26.22 mi15:11:304:16:139:479:54
9:43
-0:52

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

9:25 /mi

Average Pace

9:47 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:48:06

89% of race

Time at Steady Pace

28:07

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:46 /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 mi11:24:3129:149:2529:14
9:25
#21833
10K
6.21 mi11:53:5758:409:2629:26
9:28
#22180
15K
9.32 mi12:23:231:28:069:2729:26
9:28
#22160
20K
12.43 mi12:53:301:58:139:3130:07
9:42
#22156
Half
13.11 mi13:00:322:05:159:337:02
10:19
#22264
25K
15.53 mi13:24:012:28:449:3423:29
9:41
#22112
30K
18.64 mi13:55:273:00:109:4031:26
10:07
#21961
20M
20.00 mi14:09:323:14:159:4314:05
10:22
#21914
21M
21.00 mi14:19:553:24:389:4510:23
10:23
#21780
35K
21.75 mi14:27:113:31:549:457:16
9:43
#21735
23M
23.00 mi14:39:403:44:239:4512:29
9:58
#21622
24M
24.00 mi14:49:313:54:149:469:51
9:51
#21558
40K
24.85 mi14:57:574:02:409:468:26
9:52
#21486
25.2M
25.20 mi15:01:364:06:199:463:39
10:35
#21456
Finish
26.22 mi15:11:304:16:139:479:54
9:43
#21417
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi218338802880222178(Top 83%)8893(Top 78%)8893(Top 1091%)
10K6.21 mi3.10 mi22180-3478939-1378939-13722450(Top 84%)9057(Top 79%)9057(Top 1111%)
15K9.32 mi3.11 mi22160+208916+238916+2322178(Top 83%)8893(Top 78%)8893(Top 1091%)
20K12.43 mi3.11 mi22156+48914+28914+222149(Top 83%)8880(Top 78%)8880(Top 1090%)
Half13.11 mi0.68 mi22264-1088967-538967-5323866(Top 90%)9839(Top 86%)9839(Top 1207%)
25K15.53 mi2.42 mi22112+1528891+768891+7621418(Top 80%)8513(Top 75%)8513(Top 1045%)
30K18.64 mi3.11 mi21961+1518815+768815+7621332(Top 80%)8535(Top 75%)8535(Top 1047%)
20M20.00 mi1.36 mi21914+478800+158800+1521432(Top 81%)8658(Top 76%)8658(Top 1062%)
21M21.00 mi1.00 mi21780+1348731+698731+6919246(Top 72%)7494(Top 66%)7494(Top 920%)
35K21.75 mi0.75 mi21735+458713+188713+1820532(Top 77%)8243(Top 72%)8243(Top 1011%)
23M23.00 mi1.25 mi21622+1138668+458668+4519925(Top 75%)7916(Top 69%)7916(Top 971%)
24M24.00 mi1.00 mi21558+648646+228646+2220399(Top 77%)8206(Top 72%)8206(Top 1007%)
40K24.85 mi0.85 mi21486+728618+288618+2819605(Top 74%)7842(Top 69%)7842(Top 962%)
25.2M25.20 mi0.35 mi21456+308607+118607+1119418(Top 73%)7752(Top 68%)7752(Top 951%)
Finish26.22 mi1.02 mi21417+398598+98598+920867(Top 78%)8491(Top 74%)8491(Top 1042%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21stories
+97ft-345ft

Overall

22178

Females

8893

F55-59

8893

5K→10K

3.1 - 6.2 mi

Top 84%
×5stories
+79ft-138ft

Overall

22450

Females

9057

F55-59

9057

10K→15K

6.2 - 9.3 mi

Top 83%
×3stories
+67ft-78ft

Overall

22178

Females

8893

F55-59

8893

15K→20K

9.3 - 12.4 mi

Top 83%
×5stories
+106ft-86ft

Overall

22149

Females

8880

F55-59

8880

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

23866

Females

9839

F55-59

9839

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

21418

Females

8513

F55-59

8513

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

21332

Females

8535

F55-59

8535

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

21432

Females

8658

F55-59

8658

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

19246

Females

7494

F55-59

7494

21M→35K

21.0 - 21.8 mi

Top 77%
×7stories
+17ft-86ft

Overall

20532

Females

8243

F55-59

8243

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

19925

Females

7916

F55-59

7916

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

20399

Females

8206

F55-59

8206

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19605

Females

7842

F55-59

7842

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19418

Females

7752

F55-59

7752

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

20867

Females

8491

F55-59

8491

Passing Analysis

Category:
Athletes Passed
1516
Passed By
1100
Net Change
+416
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21833
5K → 10K114461-347#21833#22180
10K → 15K175155+20#22180#22160
15K → 20K140136+4#22160#22156
20K → Half7115-108#22156#22264
Half → 25K18533+152#22264#22112
25K → 30K21665+151#22112#21961
30K → 20M9346+47#21961#21914
20M → 21M1384+134#21914#21780
21M → 35K5914+45#21780#21735
35K → 23M12613+113#21735#21622
23M → 24M7612+64#21622#21558
24M → 40K797+72#21558#21486
40K → 25.2M377+30#21486#21456
25.2M → Finish7132+39#21456#21417
TOTALS15161100+416
📊

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