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BOSTON MARATHON 2023

Tamzin Ritter

Bib: 22284•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:46
Rank: #18334
Start → 5K
26:46 | 8:37/mi
10K· 6.21 mi
54:49
Rank: #19800 (-1466)
5K → 10K
28:03 | 9:02/mi
15K· 9.32 mi
1:22:52
Rank: #20079 (-279)
10K → 15K
28:03 | 9:02/mi
20K· 12.43 mi
1:52:07
Rank: #20459 (-380)
15K → 20K
29:15 | 9:25/mi
Half· 13.11 mi
1:58:32
Rank: #20549 (-90)
20K → Half
6:25 | 9:25/mi
25K· 15.53 mi
2:22:04
Rank: #20742 (-193)
Half → 25K
23:32 | 9:42/mi
30K· 18.64 mi
2:53:19
Rank: #20813 (-71)
25K → 30K
31:15 | 10:04/mi
20M
3:07:36
Rank: #20890 (-77)
30K → 20M
14:17 | 10:30/mi
21M
3:18:06
Rank: #20808 (+82)
20M → 21M
10:30 | 10:30/mi
35K· 21.75 mi
3:25:25
Rank: #20787 (+21)
21M → 35K
7:19 | 9:47/mi
23M
3:38:35
Rank: #20817 (-30)
35K → 23M
13:10 | 10:31/mi
24M
3:48:43
Rank: #20814 (+3)
23M → 24M
10:08 | 10:08/mi
40K· 24.85 mi
3:57:49
Rank: #20839 (-25)
24M → 40K
9:06 | 10:39/mi
25.2M
4:01:45
Rank: #20850 (-11)
40K → 25.2M
3:56 | 11:24/mi
Finish· 26.22 mi
4:12:13
Rank: #20917 (-67)
25.2M → Finish
10:28 | 10:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:32
Pace9:02 /mi
2nd Half
Distance13.11 mi
Time2:13:41
Pace10:12 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5326:468:3726:46
8:37
-
10K
6.21 mi11:48:5654:498:4928:03
9:02
+0:25
15K
9.32 mi12:16:591:22:528:5328:03
9:02
0:00
20K
12.43 mi12:46:141:52:079:0129:15
9:25
+0:23
Half
13.11 mi12:52:391:58:329:026:25
9:25
0:00
25K
15.53 mi13:16:112:22:049:0923:32
9:42
+0:17
30K
18.64 mi13:47:262:53:199:1831:15
10:04
+0:22
20M
20.00 mi14:01:433:07:369:2314:17
10:30
+0:26
21M
21.00 mi14:12:133:18:069:2610:30
10:30
0:00
35K
21.75 mi14:19:323:25:259:277:19
9:47
-0:43
23M
23.00 mi14:32:423:38:359:3013:10
10:31
+0:44
24M
24.00 mi14:42:503:48:439:3210:08
10:08
-0:23
40K
24.85 mi14:51:563:57:499:349:06
10:39
+0:31
25.2M
25.20 mi14:55:524:01:459:363:56
11:24
+0:45
Finish
26.22 mi15:06:204:12:139:3810:28
10:16
-1:08

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

8:37 /mi

Average Pace

9:38 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:04

56% of race

Time at Steady Pace

59:10

23% of race

Time at Slower Pace

50:59

20% of race

Average Pace: 9:37 /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 mi11:20:5326:468:3726:46
8:37
#18334
10K
6.21 mi11:48:5654:498:4928:03
9:02
#19800
15K
9.32 mi12:16:591:22:528:5328:03
9:02
#20079
20K
12.43 mi12:46:141:52:079:0129:15
9:25
#20459
Half
13.11 mi12:52:391:58:329:026:25
9:25
#20549
25K
15.53 mi13:16:112:22:049:0923:32
9:42
#20742
30K
18.64 mi13:47:262:53:199:1831:15
10:04
#20813
20M
20.00 mi14:01:433:07:369:2314:17
10:30
#20890
21M
21.00 mi14:12:133:18:069:2610:30
10:30
#20808
35K
21.75 mi14:19:323:25:259:277:19
9:47
#20787
23M
23.00 mi14:32:423:38:359:3013:10
10:31
#20817
24M
24.00 mi14:42:503:48:439:3210:08
10:08
#20814
40K
24.85 mi14:51:563:57:499:349:06
10:39
#20839
25.2M
25.20 mi14:55:524:01:459:363:56
11:24
#20850
Finish
26.22 mi15:06:204:12:139:3810:28
10:16
#20917
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi183346770677020635(Top 78%)8035(Top 70%)8035(Top 442%)
10K6.21 mi3.10 mi19800-14667653-8837653-88321003(Top 79%)8267(Top 72%)8267(Top 455%)
15K9.32 mi3.11 mi20079-2797783-1307783-13020635(Top 78%)8035(Top 70%)8035(Top 442%)
20K12.43 mi3.11 mi20459-3807980-1977980-19721275(Top 80%)8390(Top 73%)8390(Top 462%)
Half13.11 mi0.68 mi20549-908020-408020-4021868(Top 82%)8726(Top 76%)8726(Top 480%)
25K15.53 mi2.42 mi20742-1938119-998119-9921481(Top 81%)8546(Top 75%)8546(Top 470%)
30K18.64 mi3.11 mi20813-718167-488167-4821184(Top 80%)8450(Top 74%)8450(Top 465%)
20M20.00 mi1.36 mi20890-778229-628229-6221748(Top 82%)8846(Top 77%)8846(Top 487%)
21M21.00 mi1.00 mi20808+828196+338196+3319624(Top 74%)7722(Top 68%)7722(Top 425%)
35K21.75 mi0.75 mi20787+218201-58201-520702(Top 78%)8333(Top 73%)8333(Top 459%)
23M23.00 mi1.25 mi20817-308229-288229-2821361(Top 80%)8716(Top 76%)8716(Top 480%)
24M24.00 mi1.00 mi20814+38240-118240-1121160(Top 79%)8646(Top 76%)8646(Top 476%)
40K24.85 mi0.85 mi20839-258264-248264-2421575(Top 81%)8926(Top 78%)8926(Top 491%)
25.2M25.20 mi0.35 mi20850-118277-138277-1321372(Top 80%)8791(Top 77%)8791(Top 484%)
Finish26.22 mi1.02 mi20917-678326-498326-4922471(Top 84%)9366(Top 82%)9366(Top 515%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

20635

Females

8035

F45-49

8035

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

21003

Females

8267

F45-49

8267

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

20635

Females

8035

F45-49

8035

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

21275

Females

8390

F45-49

8390

20K→Half

12.4 - 13.1 mi

Top 82%
×2stories
+19ft-37ft

Overall

21868

Females

8726

F45-49

8726

Half→25K

13.1 - 15.5 mi

Top 81%
×4stories
+66ft-88ft

Overall

21481

Females

8546

F45-49

8546

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

21184

Females

8450

F45-49

8450

30K→20M

18.6 - 20.0 mi

Top 82%
×5stories
+64ft-50ft

Overall

21748

Females

8846

F45-49

8846

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

19624

Females

7722

F45-49

7722

21M→35K

21.0 - 21.8 mi

Top 78%
×7stories
+17ft-86ft

Overall

20702

Females

8333

F45-49

8333

35K→23M

21.8 - 23.0 mi

Top 80%
×5stories
+23ft-63ft

Overall

21361

Females

8716

F45-49

8716

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

21160

Females

8646

F45-49

8646

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21575

Females

8926

F45-49

8926

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21372

Females

8791

F45-49

8791

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2stories
+22ft-21ft

Overall

22471

Females

9366

F45-49

9366

Passing Analysis

Category:
Athletes Passed
746
Passed By
3329
Net Change
-2583
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18334
5K → 10K331499-1466#18334#19800
10K → 15K83362-279#19800#20079
15K → 20K72452-380#20079#20459
20K → Half10100-90#20459#20549
Half → 25K48241-193#20549#20742
25K → 30K120191-71#20742#20813
30K → 20M52129-77#20813#20890
20M → 21M10624+82#20890#20808
21M → 35K5029+21#20808#20787
35K → 23M5888-30#20787#20817
23M → 24M4542+3#20817#20814
24M → 40K2954-25#20814#20839
40K → 25.2M1223-11#20839#20850
25.2M → Finish2895-67#20850#20917
TOTALS7463329-2583
📊

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