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BOSTON MARATHON 2023

Toni Ivison

Bib: 20960•F

ON

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
27:55
Rank: #20392
Start → 5K
27:55 | 8:59/mi
10K· 6.21 mi
56:42
Rank: #21156 (-764)
5K → 10K
28:47 | 9:16/mi
15K· 9.32 mi
1:30:22
Rank: #22864 (-1708)
10K → 15K
33:40 | 10:50/mi
20K· 12.43 mi
2:06:07
Rank: #23731 (-867)
15K → 20K
35:45 | 11:30/mi
Half· 13.11 mi
2:13:42
Rank: #23810 (-79)
20K → Half
7:35 | 11:07/mi
25K· 15.53 mi
2:40:56
Rank: #23887 (-77)
Half → 25K
27:14 | 11:14/mi
30K· 18.64 mi
3:18:11
Rank: #24040 (-153)
25K → 30K
37:15 | 11:59/mi
20M
3:35:03
Rank: #24120 (-80)
30K → 20M
16:52 | 12:25/mi
21M
3:49:16
Rank: #24214 (-94)
20M → 21M
14:13 | 14:13/mi
35K· 21.75 mi
3:57:42
Rank: #24206 (+8)
21M → 35K
8:26 | 11:16/mi
23M
4:13:30
Rank: #24266 (-60)
35K → 23M
15:48 | 12:37/mi
24M
4:25:11
Rank: #24262 (+4)
23M → 24M
11:41 | 11:41/mi
40K· 24.85 mi
4:35:42
Rank: #24278 (-16)
24M → 40K
10:31 | 12:18/mi
25.2M
4:40:17
Rank: #24273 (+5)
40K → 25.2M
4:35 | 13:17/mi
Finish· 26.22 mi
4:52:07
Rank: #24323 (-50)
25.2M → Finish
11:50 | 11:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:13:42
Pace10:12 /mi
2nd Half
Distance13.11 mi
Time2:38:25
Pace12:05 /mi
📊Positive Split: 18.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3027:558:5927:55
8:59
-
10K
6.21 mi11:49:1756:429:0728:47
9:16
+0:17
15K
9.32 mi12:22:571:30:229:4233:40
10:50
+1:34
20K
12.43 mi12:58:422:06:0710:0935:45
11:30
+0:40
Half
13.11 mi13:06:172:13:4210:127:35
11:07
-0:23
25K
15.53 mi13:33:312:40:5610:2227:14
11:14
+0:07
30K
18.64 mi14:10:463:18:1110:3837:15
11:59
+0:45
20M
20.00 mi14:27:383:35:0310:4516:52
12:25
+0:26
21M
21.00 mi14:41:513:49:1610:5514:13
14:13
+1:48
35K
21.75 mi14:50:173:57:4210:568:26
11:16
-2:57
23M
23.00 mi15:06:054:13:3011:0115:48
12:37
+1:21
24M
24.00 mi15:17:464:25:1111:0311:41
11:41
-0:56
40K
24.85 mi15:28:174:35:4211:0610:31
12:18
+0:37
25.2M
25.20 mi15:32:524:40:1711:074:35
13:17
+0:59
Finish
26.22 mi15:44:424:52:0711:0911:50
11:37
-1:40

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

8:59 /mi

Average Pace

11:09 /mi

Slowest Pace

14:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:30:22

31% of race

Time at Steady Pace

2:19:46

48% of race

Time at Slower Pace

1:01:59

21% of race

Average Pace: 11:08 /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 mi11:20:3027:558:5927:55
8:59
#20392
10K
6.21 mi11:49:1756:429:0728:47
9:16
#21156
15K
9.32 mi12:22:571:30:229:4233:40
10:50
#22864
20K
12.43 mi12:58:422:06:0710:0935:45
11:30
#23731
Half
13.11 mi13:06:172:13:4210:127:35
11:07
#23810
25K
15.53 mi13:33:312:40:5610:2227:14
11:14
#23887
30K
18.64 mi14:10:463:18:1110:3837:15
11:59
#24040
20M
20.00 mi14:27:383:35:0310:4516:52
12:25
#24120
21M
21.00 mi14:41:513:49:1610:5514:13
14:13
#24214
35K
21.75 mi14:50:173:57:4210:568:26
11:16
#24206
23M
23.00 mi15:06:054:13:3011:0115:48
12:37
#24266
24M
24.00 mi15:17:464:25:1111:0311:41
11:41
#24262
40K
24.85 mi15:28:174:35:4211:0610:31
12:18
#24278
25.2M
25.20 mi15:32:524:40:1711:074:35
13:17
#24273
Finish
26.22 mi15:44:424:52:0711:0911:50
11:37
#24323
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi203928053805324987(Top 94%)10451(Top 91%)10451(Top 575%)
10K6.21 mi3.10 mi21156-7648395-3428395-34221825(Top 82%)8729(Top 76%)8729(Top 480%)
15K9.32 mi3.11 mi22864-17089267-8729267-87224987(Top 94%)10451(Top 91%)10451(Top 575%)
20K12.43 mi3.11 mi23731-8679734-4679734-46725253(Top 95%)10633(Top 93%)10633(Top 585%)
Half13.11 mi0.68 mi23810-799788-549788-5425106(Top 94%)10550(Top 92%)10550(Top 581%)
25K15.53 mi2.42 mi23887-779843-559843-5524319(Top 91%)10126(Top 89%)10126(Top 557%)
30K18.64 mi3.11 mi24040-1539941-989941-9824484(Top 92%)10269(Top 90%)10269(Top 565%)
20M20.00 mi1.36 mi24120-8010003-6210003-6224651(Top 93%)10418(Top 91%)10418(Top 573%)
21M21.00 mi1.00 mi24214-9410067-6410067-6425220(Top 95%)10719(Top 94%)10719(Top 590%)
35K21.75 mi0.75 mi24206+810070-310070-323775(Top 89%)10027(Top 88%)10027(Top 552%)
23M23.00 mi1.25 mi24266-6010109-3910109-3924716(Top 93%)10495(Top 92%)10495(Top 578%)
24M24.00 mi1.00 mi24262+410116-710116-724116(Top 91%)10223(Top 89%)10223(Top 563%)
40K24.85 mi0.85 mi24278-1610124-810124-824236(Top 91%)10301(Top 90%)10301(Top 567%)
25.2M25.20 mi0.35 mi24273+5101241012424318(Top 91%)10339(Top 91%)10339(Top 569%)
Finish26.22 mi1.02 mi24323-5010160-3610160-3624830(Top 93%)10575(Top 93%)10575(Top 582%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21stories
+97ft-345ft

Overall

24987

Females

10451

F45-49

10451

5K→10K

3.1 - 6.2 mi

Top 82%
×5stories
+79ft-138ft

Overall

21825

Females

8729

F45-49

8729

10K→15K

6.2 - 9.3 mi

Top 94%
×3stories
+67ft-78ft

Overall

24987

Females

10451

F45-49

10451

15K→20K

9.3 - 12.4 mi

Top 95%
×5stories
+106ft-86ft

Overall

25253

Females

10633

F45-49

10633

20K→Half

12.4 - 13.1 mi

Top 94%
×2stories
+19ft-37ft

Overall

25106

Females

10550

F45-49

10550

Half→25K

13.1 - 15.5 mi

Top 91%
×4stories
+66ft-88ft

Overall

24319

Females

10126

F45-49

10126

25K→30K

15.5 - 18.6 mi

Top 92%
×9stories
+181ft-148ft

Overall

24484

Females

10269

F45-49

10269

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

24651

Females

10418

F45-49

10418

20M→21M

20.0 - 21.0 mi

Top 95%
×8stories
+106ft-24ft

Overall

25220

Females

10719

F45-49

10719

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

23775

Females

10027

F45-49

10027

35K→23M

21.8 - 23.0 mi

Top 93%
×5stories
+23ft-63ft

Overall

24716

Females

10495

F45-49

10495

23M→24M

23.0 - 24.0 mi

Top 91%
×6stories
+12ft-82ft

Overall

24116

Females

10223

F45-49

10223

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

24236

Females

10301

F45-49

10301

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

24318

Females

10339

F45-49

10339

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2stories
+22ft-21ft

Overall

24830

Females

10575

F45-49

10575

Passing Analysis

Category:
Athletes Passed
363
Passed By
4294
Net Change
-3931
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20392
5K → 10K67831-764#20392#21156
10K → 15K41712-1708#21156#22864
15K → 20K8875-867#22864#23731
20K → Half786-79#23731#23810
Half → 25K57134-77#23810#23887
25K → 30K66219-153#23887#24040
30K → 20M25105-80#24040#24120
20M → 21M15109-94#24120#24214
21M → 35K2416+8#24214#24206
35K → 23M1575-60#24206#24266
23M → 24M3329+4#24266#24262
24M → 40K2036-16#24262#24278
40K → 25.2M149+5#24278#24273
25.2M → Finish858-50#24273#24323
TOTALS3634294-3931
📊

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