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BOSTON MARATHON 2026

Tiffany O'Connor

Bib: 27651•F

MA

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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
29:32
3.11 mi
Rank: #24501
Start → 5K
29:32 | 9:31/mi
10K
58:30
6.21 mi
Rank: #24272 (+229)
5K → 10K
28:58 | 9:20/mi
15K
1:27:27
9.32 mi
Rank: #24167 (+105)
10K → 15K
28:57 | 9:20/mi
20K
1:56:09
12.43 mi
Rank: #23848 (+319)
15K → 20K
28:42 | 9:15/mi
HALF
2:02:15
13.11 mi
Rank: #23776 (+72)
20K → HALF
6:06 | 8:57/mi
25K
2:25:15
15.53 mi
Rank: #23613 (+163)
HALF → 25K
23:00 | 9:30/mi
30K
2:53:29
18.64 mi
Rank: #23014 (+599)
25K → 30K
28:14 | 9:06/mi
20M
3:05:53
20.00 mi
Rank: #22752 (+262)
30K → 20M
12:24 | 9:08/mi
21M
3:15:23
21.00 mi
Rank: #22535 (+217)
20M → 21M
9:30 | 9:30/mi
35K
3:22:06
21.75 mi
Rank: #22436 (+99)
21M → 35K
6:43 | 8:59/mi
23M
3:33:26
23.00 mi
Rank: #22219 (+217)
35K → 23M
11:20 | 9:04/mi
24M
3:42:22
24.00 mi
Rank: #22104 (+115)
23M → 24M
8:56 | 8:56/mi
40K
3:50:16
24.85 mi
Rank: #22018 (+86)
24M → 40K
7:54 | 9:15/mi
25.2M
3:53:40
25.20 mi
Rank: #21977 (+41)
40K → 25.2M
3:24 | 9:52/mi
FINISH
4:01:55
26.22 mi
Rank: #21820 (+157)
25.2M → FINISH
8:15 | 8:06/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time2:02:15
Pace9:20 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:59:40
Pace9:08 /mi
📊Negative Split: 2.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:3329:329:3129:32
9:31
-
10K
6.21 mi12:20:3158:309:2528:58
9:20
-0:11
15K
9.32 mi12:49:281:27:279:2328:57
9:20
0:00
20K
12.43 mi13:18:101:56:099:2128:42
9:15
-0:05
HALF
13.11 mi13:24:162:02:159:206:06
8:57
-0:18
25K
15.53 mi13:47:162:25:159:2223:00
9:30
+0:33
30K
18.64 mi14:15:302:53:299:1928:14
9:06
-0:24
20M
20.00 mi14:27:543:05:539:1812:24
9:08
+0:02
21M
21.00 mi14:37:243:15:239:199:30
9:30
+0:22
35K
21.75 mi14:44:073:22:069:186:43
8:59
-0:31
23M
23.00 mi14:55:273:33:269:1711:20
9:04
+0:05
24M
24.00 mi15:04:233:42:229:168:56
8:56
-0:08
40K
24.85 mi15:12:173:50:169:167:54
9:15
+0:19
25.2M
25.20 mi15:15:413:53:409:173:24
9:52
+0:37
FINISH
26.22 mi15:23:564:01:559:158:15
8:06
-1:46

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

8:06 /mi

Average Pace

9:14 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

30:00

12% of race

Time at Steady Pace

2:26:29

61% of race

Time at Slower Pace

1:05:26

27% of race

Average Pace: 9:14 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:51:3329:329:3129:32
9:31
#24501
10K
6.21 mi12:20:3158:309:2528:58
9:20
#24272
15K
9.32 mi12:49:281:27:279:2328:57
9:20
#24167
20K
12.43 mi13:18:101:56:099:2128:42
9:15
#23848
HALF
13.11 mi13:24:162:02:159:206:06
8:57
#23776
25K
15.53 mi13:47:162:25:159:2223:00
9:30
#23613
30K
18.64 mi14:15:302:53:299:1928:14
9:06
#23014
20M
20.00 mi14:27:543:05:539:1812:24
9:08
#22752
21M
21.00 mi14:37:243:15:239:199:30
9:30
#22535
35K
21.75 mi14:44:073:22:069:186:43
8:59
#22436
23M
23.00 mi14:55:273:33:269:1711:20
9:04
#22219
24M
24.00 mi15:04:233:42:229:168:56
8:56
#22104
40K
24.85 mi15:12:173:50:169:167:54
9:15
#22018
25.2M
25.20 mi15:15:413:53:409:173:24
9:52
#21977
FINISH
26.22 mi15:23:564:01:559:158:15
8:06
#21820
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi245019930993023887(Top 82%)9595(Top 76%)9595(Top 168%)
10K6.21 mi3.10 mi24272+2299792+1389792+13824036(Top 83%)9678(Top 77%)9678(Top 169%)
15K9.32 mi3.11 mi24167+1059736+569736+5623887(Top 82%)9595(Top 76%)9595(Top 168%)
20K12.43 mi3.11 mi23848+3199576+1609576+16022903(Top 79%)9123(Top 73%)9123(Top 160%)
HALF13.11 mi0.68 mi23776+729545+319545+3122552(Top 78%)8929(Top 71%)8929(Top 156%)
25K15.53 mi2.42 mi23613+1639476+699476+6922975(Top 79%)9188(Top 73%)9188(Top 161%)
30K18.64 mi3.11 mi23014+5999211+2659211+26520017(Top 69%)7748(Top 62%)7748(Top 136%)
20M20.00 mi1.36 mi22752+2629087+1249087+12419575(Top 67%)7586(Top 60%)7586(Top 133%)
21M21.00 mi1.00 mi22535+2178995+928995+9218547(Top 64%)7096(Top 56%)7096(Top 124%)
35K21.75 mi0.75 mi22436+998944+518944+5119984(Top 69%)7941(Top 63%)7941(Top 139%)
23M23.00 mi1.25 mi22219+2178854+908854+9018808(Top 65%)7382(Top 59%)7382(Top 129%)
24M24.00 mi1.00 mi22104+1158810+448810+4419199(Top 66%)7622(Top 61%)7622(Top 133%)
40K24.85 mi0.85 mi22018+868770+408770+4019462(Top 67%)7821(Top 62%)7821(Top 137%)
25.2M25.20 mi0.35 mi21977+418759+118759+1118951(Top 65%)7552(Top 60%)7552(Top 132%)
FINISH26.22 mi1.02 mi21820+1578683+768683+7615843(Top 55%)5875(Top 47%)5875(Top 103%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21
+97ft-345ft

Overall

23887

Females

9595

F18-39

9595

5K→10K

3.1 - 6.2 mi

Top 83%
×5
+79ft-138ft

Overall

24036

Females

9678

F18-39

9678

10K→15K

6.2 - 9.3 mi

Top 82%
×3
+67ft-78ft

Overall

23887

Females

9595

F18-39

9595

15K→20K

9.3 - 12.4 mi

Top 79%
×5
+106ft-86ft

Overall

22903

Females

9123

F18-39

9123

20K→HALF

12.4 - 13.1 mi

Top 78%
×2
+19ft-37ft

Overall

22552

Females

8929

F18-39

8929

HALF→25K

13.1 - 15.5 mi

Top 79%
×4
+66ft-88ft

Overall

22975

Females

9188

F18-39

9188

25K→30K

15.5 - 18.6 mi

Top 69%
×9
+181ft-148ft

Overall

20017

Females

7748

F18-39

7748

30K→20M

18.6 - 20.0 mi

Top 67%
×5
+64ft-50ft

Overall

19575

Females

7586

F18-39

7586

20M→21M

20.0 - 21.0 mi

Top 64%
×8
+106ft-24ft

Overall

18547

Females

7096

F18-39

7096

21M→35K

21.0 - 21.8 mi

Top 69%
×7
+17ft-86ft

Overall

19984

Females

7941

F18-39

7941

35K→23M

21.8 - 23.0 mi

Top 65%
×5
+23ft-63ft

Overall

18808

Females

7382

F18-39

7382

23M→24M

23.0 - 24.0 mi

Top 66%
×6
+12ft-82ft

Overall

19199

Females

7622

F18-39

7622

24M→40K

24.0 - 24.9 mi

Top 67%
×1
+6ft-20ft

Overall

19462

Females

7821

F18-39

7821

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1
+13ft-16ft

Overall

18951

Females

7552

F18-39

7552

25.2M→FINISH

25.2 - 26.2 mi

Top 55%
×2
+22ft-21ft

Overall

15843

Females

5875

F18-39

5875

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2991*
Passed By
310
Net Change
+2681
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24501
5K → 10K345*116+229#24501#24272
10K → 15K206*101+105#24272#24167
15K → 20K335*16+319#24167#23848
20K → HALF764+72#23848#23776
HALF → 25K19431+163#23776#23613
25K → 30K599*0+599#23613#23014
30K → 20M266*4+262#23014#22752
20M → 21M221*4+217#22752#22535
21M → 35K1056+99#22535#22436
35K → 23M224*7+217#22436#22219
23M → 24M1216+115#22219#22104
24M → 40K948+86#22104#22018
40K → 25.2M487+41#22018#21977
25.2M → FINISH1570+157#21977#21820
TOTALS2991*310+2681

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing