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BOSTON MARATHON 2023

Julie Bock

Bib: 20615•F

IN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 50%
Division (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:33
Rank: #13281
Start → 5K
7:54/mi
24:33 split
10K· 6.21 mi
49:16
Rank: #13819 (-538)
5K → 10K
7:57/mi
24:43 split
15K· 9.32 mi
1:14:44
Rank: #14485 (-666)
10K → 15K
8:12/mi
25:28 split
20K· 12.43 mi
1:41:14
Rank: #15230 (-745)
15K → 20K
8:32/mi
26:30 split
Half· 13.11 mi
1:46:51
Rank: #15262 (-32)
20K → Half
8:14/mi
5:37 split
25K· 15.53 mi
2:08:08
Rank: #15683 (-421)
Half → 25K
8:47/mi
21:17 split
30K· 18.64 mi
2:37:48
Rank: #16565 (-882)
25K → 30K
9:33/mi
29:40 split
20M
2:51:04
Rank: #16869 (-304)
30K → 20M
9:46/mi
13:16 split
21M
3:01:48
Rank: #17140 (-271)
20M → 21M
10:44/mi
10:44 split
35K· 21.75 mi
3:08:41
Rank: #17202 (-62)
21M → 35K
9:12/mi
6:53 split
23M
3:20:51
Rank: #17367 (-165)
35K → 23M
9:43/mi
12:10 split
24M
3:30:28
Rank: #17522 (-155)
23M → 24M
9:37/mi
9:37 split
40K· 24.85 mi
3:38:48
Rank: #17644 (-122)
24M → 40K
9:45/mi
8:20 split
25.2M
3:42:28
Rank: #17697 (-53)
40K → 25.2M
10:38/mi
3:40 split
Finish· 26.22 mi
3:52:21
Rank: #17838 (-141)
25.2M → Finish
9:42/mi
9:53 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:51
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time2:05:30
Pace9:34 /mi
📊Positive Split: 17.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:0924:337:5424:33
7:54
-
10K
6.21 mi11:45:5249:167:5624:43
7:57
+0:03
15K
9.32 mi12:11:201:14:448:0125:28
8:12
+0:15
20K
12.43 mi12:37:501:41:148:0926:30
8:32
+0:20
Half
13.11 mi12:43:271:46:518:095:37
8:14
-0:18
25K
15.53 mi13:04:442:08:088:1521:17
8:47
+0:33
30K
18.64 mi13:34:242:37:488:2829:40
9:33
+0:46
20M
20.00 mi13:47:402:51:048:3313:16
9:46
+0:13
21M
21.00 mi13:58:243:01:488:3910:44
10:44
+0:58
35K
21.75 mi14:05:173:08:418:416:53
9:12
-1:32
23M
23.00 mi14:17:273:20:518:4412:10
9:43
+0:31
24M
24.00 mi14:27:043:30:288:469:37
9:37
-0:06
40K
24.85 mi14:35:243:38:488:488:20
9:45
+0:08
25.2M
25.20 mi14:39:043:42:288:503:40
10:38
+0:53
Finish
26.22 mi14:48:573:52:218:529:53
9:42
-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

7:54 /mi

Average Pace

8:52 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:08

55% of race

Time at Steady Pace

1:29:49

39% of race

Time at Slower Pace

14:24

6% of race

Average Pace: 8:52 /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 mi11:21:0924:337:5424:33
7:54
#13281
10K
6.21 mi11:45:5249:167:5624:43
7:57
#13819
15K
9.32 mi12:11:201:14:448:0125:28
8:12
#14485
20K
12.43 mi12:37:501:41:148:0926:30
8:32
#15230
Half
13.11 mi12:43:271:46:518:095:37
8:14
#15262
25K
15.53 mi13:04:442:08:088:1521:17
8:47
#15683
30K
18.64 mi13:34:242:37:488:2829:40
9:33
#16565
20M
20.00 mi13:47:402:51:048:3313:16
9:46
#16869
21M
21.00 mi13:58:243:01:488:3910:44
10:44
#17140
35K
21.75 mi14:05:173:08:418:416:53
9:12
#17202
23M
23.00 mi14:17:273:20:518:4412:10
9:43
#17367
24M
24.00 mi14:27:043:30:288:469:37
9:37
#17522
40K
24.85 mi14:35:243:38:488:488:20
9:45
#17644
25.2M
25.20 mi14:39:043:42:288:503:40
10:38
#17697
Finish
26.22 mi14:48:573:52:218:529:53
9:42
#17838
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi132813601360115863(Top 60%)5209(Top 46%)5209(Top 277%)
10K6.21 mi3.10 mi13819-5383935-3343935-33414474(Top 54%)4352(Top 38%)4352(Top 232%)
15K9.32 mi3.11 mi14485-6664347-4124347-41215863(Top 60%)5209(Top 46%)5209(Top 277%)
20K12.43 mi3.11 mi15230-7454830-4834830-48317060(Top 64%)5963(Top 52%)5963(Top 318%)
Half13.11 mi0.68 mi15262-324853-234853-2316116(Top 61%)5384(Top 47%)5384(Top 287%)
25K15.53 mi2.42 mi15683-4215141-2885141-28817836(Top 67%)6480(Top 57%)6480(Top 345%)
30K18.64 mi3.11 mi16565-8825723-5825723-58219615(Top 74%)7538(Top 66%)7538(Top 401%)
20M20.00 mi1.36 mi16869-3045896-1735896-17319747(Top 74%)7722(Top 68%)7722(Top 411%)
21M21.00 mi1.00 mi17140-2716074-1786074-17820220(Top 76%)8041(Top 70%)8041(Top 428%)
35K21.75 mi0.75 mi17202-626121-476121-4718747(Top 70%)7237(Top 63%)7237(Top 385%)
23M23.00 mi1.25 mi17367-1656239-1186239-11819139(Top 72%)7487(Top 66%)7487(Top 399%)
24M24.00 mi1.00 mi17522-1556343-1046343-10419640(Top 74%)7775(Top 68%)7775(Top 414%)
40K24.85 mi0.85 mi17644-1226429-866429-8619193(Top 72%)7592(Top 66%)7592(Top 404%)
25.2M25.20 mi0.35 mi17697-536461-326461-3219526(Top 73%)7791(Top 68%)7791(Top 415%)
Finish26.22 mi1.02 mi17838-1416553-926553-9220792(Top 78%)8453(Top 74%)8453(Top 450%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

15863

Females

5209

F40-44

5209

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

14474

Females

4352

F40-44

4352

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

15863

Females

5209

F40-44

5209

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

17060

Females

5963

F40-44

5963

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

16116

Females

5384

F40-44

5384

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

17836

Females

6480

F40-44

6480

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

19615

Females

7538

F40-44

7538

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

19747

Females

7722

F40-44

7722

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

20220

Females

8041

F40-44

8041

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

18747

Females

7237

F40-44

7237

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

19139

Females

7487

F40-44

7487

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

19640

Females

7775

F40-44

7775

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19193

Females

7592

F40-44

7592

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19526

Females

7791

F40-44

7791

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

20792

Females

8453

F40-44

8453

Passing Analysis

Category:
Athletes Passed
503
Passed By
5060
Net Change
-4557
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13281
5K → 10K108646-538#13281#13819
10K → 15K45711-666#13819#14485
15K → 20K46791-745#14485#15230
20K → Half2456-32#15230#15262
Half → 25K47468-421#15262#15683
25K → 30K37919-882#15683#16565
30K → 20M21325-304#16565#16869
20M → 21M27298-271#16869#17140
21M → 35K2688-62#17140#17202
35K → 23M40205-165#17202#17367
23M → 24M26181-155#17367#17522
24M → 40K24146-122#17522#17644
40K → 25.2M1366-53#17644#17697
25.2M → Finish19160-141#17697#17838
TOTALS5035060-4557
📊

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