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BOSTON MARATHON 2023

Juliette Stubbs

Bib: 16804•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 37%
Gender (Female)
#0 / 11423
Top 18%
Division (F18-39)
#0 / 4884
Top 32%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:55
Rank: #11431
Start → 5K
23:55 | 7:42/mi
10K· 6.21 mi
47:31
Rank: #11329 (+102)
5K → 10K
23:36 | 7:36/mi
15K· 9.32 mi
1:11:06
Rank: #11179 (+150)
10K → 15K
23:35 | 7:35/mi
20K· 12.43 mi
1:34:48
Rank: #10950 (+229)
15K → 20K
23:42 | 7:38/mi
Half· 13.11 mi
1:39:55
Rank: #10908 (+42)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
1:58:22
Rank: #10656 (+252)
Half → 25K
18:27 | 7:37/mi
30K· 18.64 mi
2:23:03
Rank: #10565 (+91)
25K → 30K
24:41 | 7:57/mi
20M
2:33:35
Rank: #10403 (+162)
30K → 20M
10:32 | 7:45/mi
21M
2:41:53
Rank: #10296 (+107)
20M → 21M
8:18 | 8:18/mi
35K· 21.75 mi
2:47:31
Rank: #10221 (+75)
21M → 35K
5:38 | 7:32/mi
23M
2:57:29
Rank: #10151 (+70)
35K → 23M
9:58 | 7:58/mi
24M
3:05:14
Rank: #10094 (+57)
23M → 24M
7:45 | 7:45/mi
40K· 24.85 mi
3:11:57
Rank: #10021 (+73)
24M → 40K
6:43 | 7:51/mi
25.2M
3:14:55
Rank: #10006 (+15)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:22:46
Rank: #9984 (+22)
25.2M → Finish
7:51 | 7:42/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
Time1:42:51
Pace7:51 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:2623:557:4223:55
7:42
-
10K
6.21 mi11:39:0247:317:3923:36
7:36
-0:06
15K
9.32 mi12:02:371:11:067:3823:35
7:35
-0:01
20K
12.43 mi12:26:191:34:487:3823:42
7:38
+0:03
Half
13.11 mi12:31:261:39:557:375:07
7:30
-0:08
25K
15.53 mi12:49:531:58:227:3718:27
7:37
+0:07
30K
18.64 mi13:14:342:23:037:4024:41
7:57
+0:20
20M
20.00 mi13:25:062:33:357:4110:32
7:45
-0:12
21M
21.00 mi13:33:242:41:537:438:18
8:18
+0:33
35K
21.75 mi13:39:022:47:317:425:38
7:32
-0:46
23M
23.00 mi13:49:002:57:297:439:58
7:58
+0:26
24M
24.00 mi13:56:453:05:147:437:45
7:45
-0:13
40K
24.85 mi14:03:283:11:577:436:43
7:51
+0:06
25.2M
25.20 mi14:06:263:14:557:442:58
8:36
+0:45
Finish
26.22 mi14:14:173:22:467:447:51
7:42
-0:54

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

7:44 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:30

94% of race

Time at Steady Pace

11:16

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:44 /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 mi11:15:2623:557:4223:55
7:42
#11431
10K
6.21 mi11:39:0247:317:3923:36
7:36
#11329
15K
9.32 mi12:02:371:11:067:3823:35
7:35
#11179
20K
12.43 mi12:26:191:34:487:3823:42
7:38
#10950
Half
13.11 mi12:31:261:39:557:375:07
7:30
#10908
25K
15.53 mi12:49:531:58:227:3718:27
7:37
#10656
30K
18.64 mi13:14:342:23:037:4024:41
7:57
#10565
20M
20.00 mi13:25:062:33:357:4110:32
7:45
#10403
21M
21.00 mi13:33:242:41:537:438:18
8:18
#10296
35K
21.75 mi13:39:022:47:317:425:38
7:32
#10221
23M
23.00 mi13:49:002:57:297:439:58
7:58
#10151
24M
24.00 mi13:56:453:05:147:437:45
7:45
#10094
40K
24.85 mi14:03:283:11:577:436:43
7:51
#10021
25.2M
25.20 mi14:06:263:14:557:442:58
8:36
#10006
Finish
26.22 mi14:14:173:22:467:447:51
7:42
#9984
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi114312553255310941(Top 41%)2306(Top 20%)2306(Top 47%)
10K6.21 mi3.10 mi11329+1022507+462507+4611302(Top 42%)2492(Top 22%)2492(Top 51%)
15K9.32 mi3.11 mi11179+1502427+802427+8010941(Top 41%)2306(Top 20%)2306(Top 47%)
20K12.43 mi3.11 mi10950+2292310+1172310+11710315(Top 39%)2057(Top 18%)2057(Top 42%)
Half13.11 mi0.68 mi10908+422290+202290+2010294(Top 39%)2027(Top 18%)2027(Top 42%)
25K15.53 mi2.42 mi10656+2522178+1122178+1129639(Top 36%)1842(Top 16%)1842(Top 38%)
30K18.64 mi3.11 mi10565+912188-102188-1010478(Top 39%)2376(Top 21%)2376(Top 49%)
20M20.00 mi1.36 mi10403+1622121+672121+678541(Top 32%)1619(Top 14%)1619(Top 33%)
21M21.00 mi1.00 mi10296+1072097+242097+249253(Top 35%)2030(Top 18%)2030(Top 42%)
35K21.75 mi0.75 mi10221+752069+282069+288796(Top 33%)1829(Top 16%)1829(Top 37%)
23M23.00 mi1.25 mi10151+702074-52074-59501(Top 36%)2266(Top 20%)2266(Top 46%)
24M24.00 mi1.00 mi10094+572071+32071+39445(Top 35%)2306(Top 20%)2306(Top 47%)
40K24.85 mi0.85 mi10021+73207120719074(Top 34%)2206(Top 19%)2206(Top 45%)
25.2M25.20 mi0.35 mi10006+152080-92080-910194(Top 38%)2774(Top 24%)2774(Top 57%)
Finish26.22 mi1.02 mi9984+222087-72087-710017(Top 38%)2704(Top 24%)2704(Top 55%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

10941

Females

2306

F18-39

2306

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11302

Females

2492

F18-39

2492

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

10941

Females

2306

F18-39

2306

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10315

Females

2057

F18-39

2057

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10294

Females

2027

F18-39

2027

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

9639

Females

1842

F18-39

1842

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

10478

Females

2376

F18-39

2376

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8541

Females

1619

F18-39

1619

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

9253

Females

2030

F18-39

2030

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

8796

Females

1829

F18-39

1829

35K→23M

21.8 - 23.0 mi

Top 36%
×5stories
+23ft-63ft

Overall

9501

Females

2266

F18-39

2266

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

9445

Females

2306

F18-39

2306

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9074

Females

2206

F18-39

2206

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10194

Females

2774

F18-39

2774

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10017

Females

2704

F18-39

2704

Passing Analysis

Category:
Athletes Passed
2276*
Passed By
829
Net Change
+1447
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11431
5K → 10K353251+102#11431#11329
10K → 15K262112+150#11329#11179
15K → 20K28051+229#11179#10950
20K → Half508+42#10950#10908
Half → 25K27018+252#10908#10656
25K → 30K219128+91#10656#10565
30K → 20M172*10+162#10565#10403
20M → 21M14134+107#10403#10296
21M → 35K8611+75#10296#10221
35K → 23M12050+70#10221#10151
23M → 24M9336+57#10151#10094
24M → 40K9825+73#10094#10021
40K → 25.2M4227+15#10021#10006
25.2M → Finish90*68+22#10006#9984
TOTALS2276*829+1447

* 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