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BOSTON MARATHON 2023

Tiffany O'connor

Bib: 25343•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:22
Rank: #22842
Start → 5K
9:46/mi
30:22 split
10K· 6.21 mi
59:50
Rank: #22691 (+151)
5K → 10K
9:29/mi
29:28 split
15K· 9.32 mi
1:29:27
Rank: #22585 (+106)
10K → 15K
9:32/mi
29:37 split
20K· 12.43 mi
1:59:26
Rank: #22426 (+159)
15K → 20K
9:39/mi
29:59 split
Half· 13.11 mi
2:05:56
Rank: #22422 (+4)
20K → Half
9:32/mi
6:30 split
25K· 15.53 mi
2:29:39
Rank: #22301 (+121)
Half → 25K
9:47/mi
23:43 split
30K· 18.64 mi
3:00:55
Rank: #22079 (+222)
25K → 30K
10:04/mi
31:16 split
20M
3:14:53
Rank: #22007 (+72)
30K → 20M
10:17/mi
13:58 split
21M
3:25:42
Rank: #21917 (+90)
20M → 21M
10:49/mi
10:49 split
35K· 21.75 mi
3:33:07
Rank: #21897 (+20)
21M → 35K
9:55/mi
7:25 split
23M
3:45:55
Rank: #21816 (+81)
35K → 23M
10:13/mi
12:48 split
24M
3:56:19
Rank: #21812 (+4)
23M → 24M
10:24/mi
10:24 split
40K· 24.85 mi
4:04:40
Rank: #21719 (+93)
24M → 40K
9:46/mi
8:21 split
25.2M
4:08:00
Rank: #21663 (+56)
40K → 25.2M
9:40/mi
3:20 split
Finish· 26.22 mi
4:16:42
Rank: #21482 (+181)
25.2M → Finish
8:32/mi
8:42 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:56
Pace9:36 /mi
2nd Half
Distance13.11 mi
Time2:10:46
Pace9:59 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:0330:229:4630:22
9:46
-
10K
6.21 mi12:16:3159:509:3829:28
9:29
-0:17
15K
9.32 mi12:46:081:29:279:3629:37
9:32
+0:03
20K
12.43 mi13:16:071:59:269:3729:59
9:39
+0:07
Half
13.11 mi13:22:372:05:569:366:30
9:32
-0:07
25K
15.53 mi13:46:202:29:399:3823:43
9:47
+0:15
30K
18.64 mi14:17:363:00:559:4231:16
10:04
+0:17
20M
20.00 mi14:31:343:14:539:4513:58
10:17
+0:13
21M
21.00 mi14:42:233:25:429:4810:49
10:49
+0:32
35K
21.75 mi14:49:483:33:079:487:25
9:55
-0:54
23M
23.00 mi15:02:363:45:559:4912:48
10:13
+0:18
24M
24.00 mi15:13:003:56:199:5110:24
10:24
+0:11
40K
24.85 mi15:21:214:04:409:518:21
9:46
-0:38
25.2M
25.20 mi15:24:414:08:009:503:20
9:40
-0:06
Finish
26.22 mi15:33:234:16:429:488:42
8:32
-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

8:32 /mi

Average Pace

9:48 /mi

Slowest Pace

10:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

38:10

15% of race

Time at Steady Pace

2:19:17

54% of race

Time at Slower Pace

1:19:15

31% of race

Average Pace: 9:47 /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 mi11:47:0330:229:4630:22
9:46
#22842
10K
6.21 mi12:16:3159:509:3829:28
9:29
#22691
15K
9.32 mi12:46:081:29:279:3629:37
9:32
#22585
20K
12.43 mi13:16:071:59:269:3729:59
9:39
#22426
Half
13.11 mi13:22:372:05:569:366:30
9:32
#22422
25K
15.53 mi13:46:202:29:399:3823:43
9:47
#22301
30K
18.64 mi14:17:363:00:559:4231:16
10:04
#22079
20M
20.00 mi14:31:343:14:539:4513:58
10:17
#22007
21M
21.00 mi14:42:233:25:429:4810:49
10:49
#21917
35K
21.75 mi14:49:483:33:079:487:25
9:55
#21897
23M
23.00 mi15:02:363:45:559:4912:48
10:13
#21816
24M
24.00 mi15:13:003:56:199:5110:24
10:24
#21812
40K
24.85 mi15:21:214:04:409:518:21
9:46
#21719
25.2M
25.20 mi15:24:414:08:009:503:20
9:40
#21663
Finish
26.22 mi15:33:234:16:429:488:42
8:32
#21482
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi228429298929822349(Top 84%)8980(Top 79%)8980(Top 184%)
10K6.21 mi3.10 mi22691+1519193+1059193+10522472(Top 84%)9073(Top 79%)9073(Top 186%)
15K9.32 mi3.11 mi22585+1069133+609133+6022349(Top 84%)8980(Top 79%)8980(Top 184%)
20K12.43 mi3.11 mi22426+1599045+889045+8822014(Top 83%)8807(Top 77%)8807(Top 180%)
Half13.11 mi0.68 mi22422+49042+39042+322199(Top 83%)8886(Top 78%)8886(Top 182%)
25K15.53 mi2.42 mi22301+1219005+379005+3721692(Top 81%)8667(Top 76%)8667(Top 177%)
30K18.64 mi3.11 mi22079+2228880+1258880+12521199(Top 80%)8458(Top 74%)8458(Top 173%)
20M20.00 mi1.36 mi22007+728849+318849+3121222(Top 80%)8533(Top 75%)8533(Top 175%)
21M21.00 mi1.00 mi21917+908810+398810+3920427(Top 77%)8162(Top 71%)8162(Top 167%)
35K21.75 mi0.75 mi21897+208795+158795+1521061(Top 79%)8523(Top 75%)8523(Top 175%)
23M23.00 mi1.25 mi21816+818771+248771+2420650(Top 78%)8323(Top 73%)8323(Top 170%)
24M24.00 mi1.00 mi21812+48779-88779-821811(Top 82%)9004(Top 79%)9004(Top 184%)
40K24.85 mi0.85 mi21719+938746+338746+3319306(Top 73%)7664(Top 67%)7664(Top 157%)
25.2M25.20 mi0.35 mi21663+568722+248722+2416067(Top 60%)5931(Top 52%)5931(Top 121%)
Finish26.22 mi1.02 mi21482+1818626+968626+9615682(Top 59%)5650(Top 49%)5650(Top 116%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

22349

Females

8980

F18-39

8980

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

22472

Females

9073

F18-39

9073

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

22349

Females

8980

F18-39

8980

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

22014

Females

8807

F18-39

8807

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

22199

Females

8886

F18-39

8886

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

21692

Females

8667

F18-39

8667

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

21199

Females

8458

F18-39

8458

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

21222

Females

8533

F18-39

8533

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

20427

Females

8162

F18-39

8162

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

21061

Females

8523

F18-39

8523

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

20650

Females

8323

F18-39

8323

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

21811

Females

9004

F18-39

9004

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

19306

Females

7664

F18-39

7664

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16067

Females

5931

F18-39

5931

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

15682

Females

5650

F18-39

5650

Passing Analysis

Category:
Athletes Passed
1914
Passed By
554
Net Change
+1360
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22842
5K → 10K328177+151#22842#22691
10K → 15K20397+106#22691#22585
15K → 20K21556+159#22585#22426
20K → Half2521+4#22426#22422
Half → 25K16544+121#22422#22301
25K → 30K25634+222#22301#22079
30K → 20M10028+72#22079#22007
20M → 21M11323+90#22007#21917
21M → 35K3717+20#21917#21897
35K → 23M10322+81#21897#21816
23M → 24M3329+4#21816#21812
24M → 40K974+93#21812#21719
40K → 25.2M571+56#21719#21663
25.2M → Finish1821+181#21663#21482
TOTALS1914554+1360
📊

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