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BOSTON MARATHON 2026

Jennifer O'Halloran

Bib: 14198•F

FL

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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 47%
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
21:41
3.11 mi
Rank: #8397
Start → 5K
21:41 | 6:59/mi
10K
43:09
6.21 mi
Rank: #8186 (+211)
5K → 10K
21:28 | 6:55/mi
15K
1:04:54
9.32 mi
Rank: #8308 (-122)
10K → 15K
21:45 | 7:01/mi
20K
1:27:49
12.43 mi
Rank: #8838 (-530)
15K → 20K
22:55 | 7:23/mi
HALF
1:32:59
13.11 mi
Rank: #9060 (-222)
20K → HALF
5:10 | 7:35/mi
25K
1:52:56
15.53 mi
Rank: #10319 (-1259)
HALF → 25K
19:57 | 8:14/mi
30K
2:23:07
18.64 mi
Rank: #13358 (-3039)
25K → 30K
30:11 | 9:43/mi
20M
2:37:13
20.00 mi
Rank: #14600 (-1242)
30K → 20M
14:06 | 10:23/mi
21M
2:46:55
21.00 mi
Rank: #14938 (-338)
20M → 21M
9:42 | 9:42/mi
35K
2:54:51
21.75 mi
Rank: #15620 (-682)
21M → 35K
7:56 | 10:37/mi
23M
3:06:37
23.00 mi
Rank: #15960 (-340)
35K → 23M
11:46 | 9:25/mi
24M
3:17:00
24.00 mi
Rank: #16523 (-563)
23M → 24M
10:23 | 10:23/mi
40K
3:25:08
24.85 mi
Rank: #16703 (-180)
24M → 40K
8:08 | 9:31/mi
25.2M
3:28:27
25.20 mi
Rank: #16717 (-14)
40K → 25.2M
3:19 | 9:38/mi
FINISH
3:36:26
26.22 mi
Rank: #16600 (+117)
25.2M → FINISH
7:59 | 7:51/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:32:59
Pace7:06 /mi
2nd Half
Distance13.11 mi
Time2:03:27
Pace9:26 /mi
📊Positive Split: 32.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:2221:416:5921:41
6:59
-
10K
6.21 mi11:12:5043:096:5721:28
6:55
-0:04
15K
9.32 mi11:34:351:04:546:5821:45
7:01
+0:06
20K
12.43 mi11:57:301:27:497:0422:55
7:23
+0:22
HALF
13.11 mi12:02:401:32:597:065:10
7:35
+0:12
25K
15.53 mi12:22:371:52:567:1719:57
8:14
+0:39
30K
18.64 mi12:52:482:23:077:4130:11
9:43
+1:29
20M
20.00 mi13:06:542:37:137:5214:06
10:23
+0:40
21M
21.00 mi13:16:362:46:557:579:42
9:42
-0:41
35K
21.75 mi13:24:322:54:518:037:56
10:37
+0:55
23M
23.00 mi13:36:183:06:378:0711:46
9:25
-1:12
24M
24.00 mi13:46:413:17:008:1310:23
10:23
+0:58
40K
24.85 mi13:54:493:25:088:168:08
9:31
-0:52
25.2M
25.20 mi13:58:083:28:278:173:19
9:38
+0:07
FINISH
26.22 mi14:06:073:36:268:167:59
7:51
-1:47

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

6:55 /mi

Average Pace

8:16 /mi

Slowest Pace

10:37 /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

2:00:55

56% of race

Time at Steady Pace

1:03:06

29% of race

Time at Slower Pace

32:25

15% of race

Average Pace: 8:15 /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 mi10:51:2221:416:5921:41
6:59
#8397
10K
6.21 mi11:12:5043:096:5721:28
6:55
#8186
15K
9.32 mi11:34:351:04:546:5821:45
7:01
#8308
20K
12.43 mi11:57:301:27:497:0422:55
7:23
#8838
HALF
13.11 mi12:02:401:32:597:065:10
7:35
#9060
25K
15.53 mi12:22:371:52:567:1719:57
8:14
#10319
30K
18.64 mi12:52:482:23:077:4130:11
9:43
#13358
20M
20.00 mi13:06:542:37:137:5214:06
10:23
#14600
21M
21.00 mi13:16:362:46:557:579:42
9:42
#14938
35K
21.75 mi13:24:322:54:518:037:56
10:37
#15620
23M
23.00 mi13:36:183:06:378:0711:46
9:25
#15960
24M
24.00 mi13:46:413:17:008:1310:23
10:23
#16523
40K
24.85 mi13:54:493:25:088:168:08
9:31
#16703
25.2M
25.20 mi13:58:083:28:278:173:19
9:38
#16717
FINISH
26.22 mi14:06:073:36:268:167:59
7:51
#16600
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 mi8397120912098595(Top 30%)1334(Top 11%)1334(Top 23%)
10K6.21 mi3.10 mi8186+2111148+611148+618022(Top 28%)1104(Top 9%)1104(Top 19%)
15K9.32 mi3.11 mi8308-1221216-681216-688595(Top 30%)1334(Top 11%)1334(Top 23%)
20K12.43 mi3.11 mi8838-5301416-2001416-20010934(Top 38%)2550(Top 20%)2550(Top 45%)
HALF13.11 mi0.68 mi9060-2221500-841500-8413778(Top 47%)4049(Top 32%)4049(Top 71%)
25K15.53 mi2.42 mi10319-12592144-6442144-64416969(Top 58%)5962(Top 47%)5962(Top 104%)
30K18.64 mi3.11 mi13358-30393849-17053849-170522314(Top 77%)8924(Top 71%)8924(Top 156%)
20M20.00 mi1.36 mi14600-12424582-7334582-73323558(Top 81%)9672(Top 77%)9672(Top 169%)
21M21.00 mi1.00 mi14938-3384824-2424824-24219383(Top 67%)7517(Top 60%)7517(Top 132%)
35K21.75 mi0.75 mi15620-6825229-4055229-40524499(Top 84%)10252(Top 82%)10252(Top 179%)
23M23.00 mi1.25 mi15960-3405468-2395468-23920259(Top 70%)8088(Top 64%)8088(Top 141%)
24M24.00 mi1.00 mi16523-5635786-3185786-31823804(Top 82%)9967(Top 79%)9967(Top 174%)
40K24.85 mi0.85 mi16703-1805908-1225908-12220446(Top 70%)8294(Top 66%)8294(Top 145%)
25.2M25.20 mi0.35 mi16717-145927-195927-1917902(Top 62%)6965(Top 55%)6965(Top 122%)
FINISH26.22 mi1.02 mi16600+1175884+435884+4314075(Top 48%)4963(Top 39%)4963(Top 87%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21
+97ft-345ft

Overall

8595

Females

1334

F18-39

1334

5K→10K

3.1 - 6.2 mi

Top 28%
×5
+79ft-138ft

Overall

8022

Females

1104

F18-39

1104

10K→15K

6.2 - 9.3 mi

Top 30%
×3
+67ft-78ft

Overall

8595

Females

1334

F18-39

1334

15K→20K

9.3 - 12.4 mi

Top 38%
×5
+106ft-86ft

Overall

10934

Females

2550

F18-39

2550

20K→HALF

12.4 - 13.1 mi

Top 47%
×2
+19ft-37ft

Overall

13778

Females

4049

F18-39

4049

HALF→25K

13.1 - 15.5 mi

Top 58%
×4
+66ft-88ft

Overall

16969

Females

5962

F18-39

5962

25K→30K

15.5 - 18.6 mi

Top 77%
×9
+181ft-148ft

Overall

22314

Females

8924

F18-39

8924

30K→20M

18.6 - 20.0 mi

Top 81%
×5
+64ft-50ft

Overall

23558

Females

9672

F18-39

9672

20M→21M

20.0 - 21.0 mi

Top 67%
×8
+106ft-24ft

Overall

19383

Females

7517

F18-39

7517

21M→35K

21.0 - 21.8 mi

Top 84%
×7
+17ft-86ft

Overall

24499

Females

10252

F18-39

10252

35K→23M

21.8 - 23.0 mi

Top 70%
×5
+23ft-63ft

Overall

20259

Females

8088

F18-39

8088

23M→24M

23.0 - 24.0 mi

Top 82%
×6
+12ft-82ft

Overall

23804

Females

9967

F18-39

9967

24M→40K

24.0 - 24.9 mi

Top 70%
×1
+6ft-20ft

Overall

20446

Females

8294

F18-39

8294

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1
+13ft-16ft

Overall

17902

Females

6965

F18-39

6965

25.2M→FINISH

25.2 - 26.2 mi

Top 48%
×2
+22ft-21ft

Overall

14075

Females

4963

F18-39

4963

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
757
Passed By
8958
Net Change
-8203
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8397
5K → 10K320109+211#8397#8186
10K → 15K89211-122#8186#8308
15K → 20K33563-530#8308#8838
20K → HALF2224-222#8838#9060
HALF → 25K111268-1259#9060#10319
25K → 30K43043-3039#10319#13358
30K → 20M91251-1242#13358#14600
20M → 21M41379-338#14600#14938
21M → 35K9691-682#14938#15620
35K → 23M35375-340#15620#15960
23M → 24M2565-563#15960#16523
24M → 40K37217-180#16523#16703
40K → 25.2M2842-14#16703#16717
25.2M → FINISH13720+117#16717#16600
TOTALS7578958-8203
📊

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