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BOSTON MARATHON 2026

Ciara O'Reilly

Bib: 21729•F

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 46%
Masters (Masters Women)
#0 / 6862
Top 32%
Age Group (F45-49)
#0 / 1786
Top 40%
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
25:10
3.11 mi
Rank: #17617
Start → 5K
25:10 | 8:07/mi
10K
50:03
6.21 mi
Rank: #17484 (+133)
5K → 10K
24:53 | 8:01/mi
15K
1:15:00
9.32 mi
Rank: #17404 (+80)
10K → 15K
24:57 | 8:02/mi
20K
1:41:34
12.43 mi
Rank: #17993 (-589)
15K → 20K
26:34 | 8:34/mi
HALF
1:47:00
13.11 mi
Rank: #17937 (+56)
20K → HALF
5:26 | 7:59/mi
25K
2:06:46
15.53 mi
Rank: #17672 (+265)
HALF → 25K
19:46 | 8:10/mi
30K
2:32:30
18.64 mi
Rank: #17256 (+416)
25K → 30K
25:44 | 8:17/mi
20M
2:43:59
20.00 mi
Rank: #17137 (+119)
30K → 20M
11:29 | 8:28/mi
21M
2:52:22
21.00 mi
Rank: #16861 (+276)
20M → 21M
8:23 | 8:23/mi
35K
2:58:32
21.75 mi
Rank: #16808 (+53)
21M → 35K
6:10 | 8:15/mi
23M
3:08:55
23.00 mi
Rank: #16641 (+167)
35K → 23M
10:23 | 8:18/mi
24M
3:17:17
24.00 mi
Rank: #16594 (+47)
23M → 24M
8:22 | 8:22/mi
40K
3:24:25
24.85 mi
Rank: #16505 (+89)
24M → 40K
7:08 | 8:21/mi
25.2M
3:27:35
25.20 mi
Rank: #16484 (+21)
40K → 25.2M
3:10 | 9:11/mi
FINISH
3:35:45
26.22 mi
Rank: #16417 (+67)
25.2M → FINISH
8:10 | 8:01/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:47:00
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time1:48:45
Pace8:18 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:3925:108:0725:10
8:07
-
10K
6.21 mi12:11:3250:038:0424:53
8:01
-0:06
15K
9.32 mi12:36:291:15:008:0324:57
8:02
+0:01
20K
12.43 mi13:03:031:41:348:1126:34
8:34
+0:32
HALF
13.11 mi13:08:291:47:008:105:26
7:59
-0:35
25K
15.53 mi13:28:152:06:468:1019:46
8:10
+0:11
30K
18.64 mi13:53:592:32:308:1125:44
8:17
+0:07
20M
20.00 mi14:05:282:43:598:1211:29
8:28
+0:11
21M
21.00 mi14:13:512:52:228:138:23
8:23
-0:05
35K
21.75 mi14:20:012:58:328:136:10
8:15
-0:08
23M
23.00 mi14:30:243:08:558:1310:23
8:18
+0:03
24M
24.00 mi14:38:463:17:178:148:22
8:22
+0:04
40K
24.85 mi14:45:543:24:258:147:08
8:21
-0:01
25.2M
25.20 mi14:49:043:27:358:153:10
9:11
+0:50
FINISH
26.22 mi14:57:143:35:458:158:10
8:01
-1:10

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

7:59 /mi

Average Pace

8:14 /mi

Slowest Pace

9:11 /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

3:32:35

99% of race

Time at Steady Pace

3:10

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:14 /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 mi11:46:3925:108:0725:10
8:07
#17617
10K
6.21 mi12:11:3250:038:0424:53
8:01
#17484
15K
9.32 mi12:36:291:15:008:0324:57
8:02
#17404
20K
12.43 mi13:03:031:41:348:1126:34
8:34
#17993
HALF
13.11 mi13:08:291:47:008:105:26
7:59
#17937
25K
15.53 mi13:28:152:06:468:1019:46
8:10
#17672
30K
18.64 mi13:53:592:32:308:1125:44
8:17
#17256
20M
20.00 mi14:05:282:43:598:1211:29
8:28
#17137
21M
21.00 mi14:13:512:52:228:138:23
8:23
#16861
35K
21.75 mi14:20:012:58:328:136:10
8:15
#16808
23M
23.00 mi14:30:243:08:558:1310:23
8:18
#16641
24M
24.00 mi14:38:463:17:178:148:22
8:22
#16594
40K
24.85 mi14:45:543:24:258:147:08
8:21
#16505
25.2M
25.20 mi14:49:043:27:358:153:10
9:11
#16484
FINISH
26.22 mi14:57:143:35:458:158:10
8:01
#16417
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi176176281628117261(Top 59%)6061(Top 48%)6061(Top 339%)
10K6.21 mi3.10 mi17484+1336202+796202+7917324(Top 60%)6104(Top 49%)6104(Top 342%)
15K9.32 mi3.11 mi17404+806167+356167+3517261(Top 59%)6061(Top 48%)6061(Top 339%)
20K12.43 mi3.11 mi17993-5896487-3206487-32019605(Top 68%)7409(Top 59%)7409(Top 415%)
HALF13.11 mi0.68 mi17937+566451+366451+3616945(Top 58%)5885(Top 47%)5885(Top 330%)
25K15.53 mi2.42 mi17672+2656319+1326319+13216495(Top 57%)5710(Top 45%)5710(Top 320%)
30K18.64 mi3.11 mi17256+4166110+2096110+20915514(Top 53%)5256(Top 42%)5256(Top 294%)
20M20.00 mi1.36 mi17137+1196052+586052+5815960(Top 55%)5619(Top 45%)5619(Top 315%)
21M21.00 mi1.00 mi16861+2765917+1355917+13512423(Top 43%)3758(Top 30%)3758(Top 210%)
35K21.75 mi0.75 mi16808+535903+145903+1416129(Top 56%)5828(Top 46%)5828(Top 326%)
23M23.00 mi1.25 mi16641+1675833+705833+7014478(Top 50%)4985(Top 40%)4985(Top 279%)
24M24.00 mi1.00 mi16594+475827+65827+616139(Top 56%)5989(Top 48%)5989(Top 335%)
40K24.85 mi0.85 mi16505+895800+275800+2714761(Top 51%)5312(Top 42%)5312(Top 297%)
25.2M25.20 mi0.35 mi16484+215802-25802-215755(Top 54%)5828(Top 46%)5828(Top 326%)
FINISH26.22 mi1.02 mi16417+675787+155787+1515289(Top 53%)5586(Top 44%)5586(Top 313%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21
+97ft-345ft

Overall

17261

Females

6061

F45-49

6061

5K→10K

3.1 - 6.2 mi

Top 60%
×5
+79ft-138ft

Overall

17324

Females

6104

F45-49

6104

10K→15K

6.2 - 9.3 mi

Top 59%
×3
+67ft-78ft

Overall

17261

Females

6061

F45-49

6061

15K→20K

9.3 - 12.4 mi

Top 68%
×5
+106ft-86ft

Overall

19605

Females

7409

F45-49

7409

20K→HALF

12.4 - 13.1 mi

Top 58%
×2
+19ft-37ft

Overall

16945

Females

5885

F45-49

5885

HALF→25K

13.1 - 15.5 mi

Top 57%
×4
+66ft-88ft

Overall

16495

Females

5710

F45-49

5710

25K→30K

15.5 - 18.6 mi

Top 53%
×9
+181ft-148ft

Overall

15514

Females

5256

F45-49

5256

30K→20M

18.6 - 20.0 mi

Top 55%
×5
+64ft-50ft

Overall

15960

Females

5619

F45-49

5619

20M→21M

20.0 - 21.0 mi

Top 43%
×8
+106ft-24ft

Overall

12423

Females

3758

F45-49

3758

21M→35K

21.0 - 21.8 mi

Top 56%
×7
+17ft-86ft

Overall

16129

Females

5828

F45-49

5828

35K→23M

21.8 - 23.0 mi

Top 50%
×5
+23ft-63ft

Overall

14478

Females

4985

F45-49

4985

23M→24M

23.0 - 24.0 mi

Top 56%
×6
+12ft-82ft

Overall

16139

Females

5989

F45-49

5989

24M→40K

24.0 - 24.9 mi

Top 51%
×1
+6ft-20ft

Overall

14761

Females

5312

F45-49

5312

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1
+13ft-16ft

Overall

15755

Females

5828

F45-49

5828

25.2M→FINISH

25.2 - 26.2 mi

Top 53%
×2
+22ft-21ft

Overall

15289

Females

5586

F45-49

5586

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2455*
Passed By
815
Net Change
+1200
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17617
5K → 10K333*200+133#17617#17484
10K → 15K233*153+80#17484#17404
15K → 20K51200-589#17404#17993
20K → HALF7115+56#17993#17937
HALF → 25K285*20+265#17937#17672
25K → 30K435*19+416#17672#17256
30K → 20M14324+119#17256#17137
20M → 21M282*6+276#17137#16861
21M → 35K8734+53#16861#16808
35K → 23M18316+167#16808#16641
23M → 24M9851+47#16641#16594
24M → 40K11627+89#16594#16505
40K → 25.2M4019+21#16505#16484
25.2M → FINISH9831+67#16484#16417
TOTALS2455*815+1200

* 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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing