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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Hayley O'Brien

Bib: 27801 •F •Age: N/A

MA

Boston Marathon logo
0:00
0:00
/ mi
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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
33:53
3.11 mi
Rank: #27893
Start → 5K
33:53 | 10:55/mi
10K
1:07:50
6.21 mi
Rank: #27745 (+148)
5K → 10K
33:57 | 10:56/mi
15K
1:42:32
9.32 mi
Rank: #27723 (+22)
10K → 15K
34:42 | 11:11/mi
20K
2:18:57
12.43 mi
Rank: #27752 (-29)
15K → 20K
36:25 | 11:44/mi
HALF
2:26:27
13.11 mi
Rank: #27732 (+20)
20K → HALF
7:30 | 11:01/mi
25K
3:02:22
15.53 mi
Rank: #28141 (-409)
HALF → 25K
35:55 | 14:49/mi
30K
3:41:32
18.64 mi
Rank: #28010 (+131)
25K → 30K
39:10 | 12:37/mi
20M
3:59:35
20.00 mi
Rank: #27984 (+26)
30K → 20M
18:03 | 13:18/mi
21M
4:13:38
21.00 mi
Rank: #27970 (+14)
20M → 21M
14:03 | 14:03/mi
35K
4:22:23
21.75 mi
Rank: #27936 (+34)
21M → 35K
8:45 | 11:42/mi
23M
4:37:40
23.00 mi
Rank: #27873 (+63)
35K → 23M
15:17 | 12:13/mi
24M
4:49:15
24.00 mi
Rank: #27831 (+42)
23M → 24M
11:35 | 11:35/mi
40K
4:59:32
24.85 mi
Rank: #27794 (+37)
24M → 40K
10:17 | 12:02/mi
25.2M
5:04:09
25.20 mi
Rank: #27776 (+18)
40K → 25.2M
4:37 | 13:24/mi
FINISH
5:15:58
26.22 mi
Rank: #27756 (+20)
25.2M → FINISH
11:49 | 11:36/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:26:27
Pace11:11 /mi
2nd Half
Distance13.11 mi
Time2:49:31
Pace12:56 /mi
📊Positive Split: 15.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:1433:5310:5533:53
10:55
-
10K
6.21 mi12:30:111:07:5010:5633:57
10:56
+0:01
15K
9.32 mi13:04:531:42:3211:0134:42
11:11
+0:15
20K
12.43 mi13:41:182:18:5711:1136:25
11:44
+0:33
HALF
13.11 mi13:48:482:26:2711:117:30
11:01
-0:43
25K
15.53 mi14:24:433:02:2211:4535:55
14:49
+3:48
30K
18.64 mi15:03:533:41:3211:5439:10
12:37
-2:12
20M
20.00 mi15:21:563:59:3511:5918:03
13:18
+0:41
21M
21.00 mi15:35:594:13:3812:0514:03
14:03
+0:45
35K
21.75 mi15:44:444:22:2312:048:45
11:42
-2:21
23M
23.00 mi16:00:014:37:4012:0515:17
12:13
+0:31
24M
24.00 mi16:11:364:49:1512:0411:35
11:35
-0:38
40K
24.85 mi16:21:534:59:3212:0410:17
12:02
+0:27
25.2M
25.20 mi16:26:305:04:0912:054:37
13:24
+1:22
FINISH
26.22 mi16:38:195:15:5812:0411:49
11:36
-1:48

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

10:55 /mi

Average Pace

12:04 /mi

Slowest Pace

14:49 /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

1:15:20

24% of race

Time at Steady Pace

2:08:50

41% of race

Time at Slower Pace

1:51:48

35% of race

Average Pace: 12:03 /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 mi11:56:1433:5310:5533:53
10:55
#27893
10K
6.21 mi12:30:111:07:5010:5633:57
10:56
#27745
15K
9.32 mi13:04:531:42:3211:0134:42
11:11
#27723
20K
12.43 mi13:41:182:18:5711:1136:25
11:44
#27752
HALF
13.11 mi13:48:482:26:2711:117:30
11:01
#27732
25K
15.53 mi14:24:433:02:2211:4535:55
14:49
#28141
30K
18.64 mi15:03:533:41:3211:5439:10
12:37
#28010
20M
20.00 mi15:21:563:59:3511:5918:03
13:18
#27984
21M
21.00 mi15:35:594:13:3812:0514:03
14:03
#27970
35K
21.75 mi15:44:444:22:2312:048:45
11:42
#27936
23M
23.00 mi16:00:014:37:4012:0515:17
12:13
#27873
24M
24.00 mi16:11:364:49:1512:0411:35
11:35
#27831
40K
24.85 mi16:21:534:59:3212:0410:17
12:02
#27794
25.2M
25.20 mi16:26:305:04:0912:054:37
13:24
#27776
FINISH
26.22 mi16:38:195:15:5812:0411:49
11:36
#27756
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 mi27893118141181427632(Top 95%)11678(Top 93%)11678(Top 204%)
10K6.21 mi3.10 mi27745+14811724+9011724+9027584(Top 95%)11650(Top 93%)11650(Top 204%)
15K9.32 mi3.11 mi27723+2211726-211726-227632(Top 95%)11678(Top 93%)11678(Top 204%)
20K12.43 mi3.11 mi27752-2911752-2611752-2627755(Top 96%)11767(Top 94%)11767(Top 206%)
HALF13.11 mi0.68 mi27732+2011739+1311739+1327385(Top 94%)11589(Top 92%)11589(Top 203%)
25K15.53 mi2.42 mi28141-40912000-26112000-26128893(Top 100%)12505(Top 99%)12505(Top 219%)
30K18.64 mi3.11 mi28010+13111928+7211928+7227383(Top 94%)11674(Top 93%)11674(Top 204%)
20M20.00 mi1.36 mi27984+2611918+1011918+1027655(Top 95%)11851(Top 94%)11851(Top 207%)
21M21.00 mi1.00 mi27970+1411914+411914+427364(Top 94%)11732(Top 93%)11732(Top 205%)
35K21.75 mi0.75 mi27936+3411892+2211892+2226378(Top 91%)11239(Top 89%)11239(Top 197%)
23M23.00 mi1.25 mi27873+6311867+2511867+2526436(Top 91%)11296(Top 90%)11296(Top 198%)
24M24.00 mi1.00 mi27831+4211851+1611851+1626075(Top 90%)11153(Top 89%)11153(Top 195%)
40K24.85 mi0.85 mi27794+3711841+1011841+1025948(Top 89%)11123(Top 88%)11123(Top 195%)
25.2M25.20 mi0.35 mi27776+1811834+711834+726566(Top 92%)11408(Top 91%)11408(Top 200%)
FINISH26.22 mi1.02 mi27756+2011828+611828+626999(Top 93%)11641(Top 93%)11641(Top 204%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21
+97ft-345ft

Overall

27632

Females

11678

F18-39

11678

5K→10K

3.1 - 6.2 mi

Top 95%
×5
+79ft-138ft

Overall

27584

Females

11650

F18-39

11650

10K→15K

6.2 - 9.3 mi

Top 95%
×3
+67ft-78ft

Overall

27632

Females

11678

F18-39

11678

15K→20K

9.3 - 12.4 mi

Top 96%
×5
+106ft-86ft

Overall

27755

Females

11767

F18-39

11767

20K→HALF

12.4 - 13.1 mi

Top 94%
×2
+19ft-37ft

Overall

27385

Females

11589

F18-39

11589

HALF→25K

13.1 - 15.5 mi

Top 100%
×4
+66ft-88ft

Overall

28893

Females

12505

F18-39

12505

25K→30K

15.5 - 18.6 mi

Top 94%
×9
+181ft-148ft

Overall

27383

Females

11674

F18-39

11674

30K→20M

18.6 - 20.0 mi

Top 95%
×5
+64ft-50ft

Overall

27655

Females

11851

F18-39

11851

20M→21M

20.0 - 21.0 mi

Top 94%
×8
+106ft-24ft

Overall

27364

Females

11732

F18-39

11732

21M→35K

21.0 - 21.8 mi

Top 91%
×7
+17ft-86ft

Overall

26378

Females

11239

F18-39

11239

35K→23M

21.8 - 23.0 mi

Top 91%
×5
+23ft-63ft

Overall

26436

Females

11296

F18-39

11296

23M→24M

23.0 - 24.0 mi

Top 90%
×6
+12ft-82ft

Overall

26075

Females

11153

F18-39

11153

24M→40K

24.0 - 24.9 mi

Top 89%
×1
+6ft-20ft

Overall

25948

Females

11123

F18-39

11123

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1
+13ft-16ft

Overall

26566

Females

11408

F18-39

11408

25.2M→FINISH

25.2 - 26.2 mi

Top 93%
×2
+22ft-21ft

Overall

26999

Females

11641

F18-39

11641

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
899*
Passed By
548
Net Change
+137
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27893
5K → 10K224*76+148#27893#27745
10K → 15K129107+22#27745#27723
15K → 20K75104-29#27723#27752
20K → HALF222+20#27752#27732
HALF → 25K5200-409#27732#28141
25K → 30K14413+131#28141#28010
30K → 20M4014+26#28010#27984
20M → 21M2713+14#27984#27970
21M → 35K362+34#27970#27936
35K → 23M663+63#27936#27873
23M → 24M431+42#27873#27831
24M → 40K381+37#27831#27794
40K → 25.2M180+18#27794#27776
25.2M → FINISH3212+20#27776#27756
TOTALS899*548+137

* 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

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