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BOSTON MARATHON 2023

Katharine Reilly

Bib: 17080•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 20%
Masters (Masters Women)
#0 / 6539
Top 8%
Division (F45-49)
#0 / 1817
Top 8%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:03
Rank: #11844
Start → 5K
24:03 | 7:44/mi
10K· 6.21 mi
47:05
Rank: #10716 (+1128)
5K → 10K
23:02 | 7:25/mi
15K· 9.32 mi
1:10:05
Rank: #10236 (+480)
10K → 15K
23:00 | 7:24/mi
20K· 12.43 mi
1:33:55
Rank: #10329 (-93)
15K → 20K
23:50 | 7:40/mi
Half· 13.11 mi
1:39:06
Rank: #10371 (-42)
20K → Half
5:11 | 7:36/mi
25K· 15.53 mi
1:57:54
Rank: #10404 (-33)
Half → 25K
18:48 | 7:45/mi
30K· 18.64 mi
2:22:34
Rank: #10350 (+54)
25K → 30K
24:40 | 7:56/mi
20M
2:33:33
Rank: #10384 (-34)
30K → 20M
10:59 | 8:05/mi
21M
2:42:27
Rank: #10503 (-119)
20M → 21M
8:54 | 8:54/mi
35K· 21.75 mi
2:48:06
Rank: #10420 (+83)
21M → 35K
5:39 | 7:33/mi
23M
2:58:14
Rank: #10395 (+25)
35K → 23M
10:08 | 8:06/mi
24M
3:06:02
Rank: #10356 (+39)
23M → 24M
7:48 | 7:48/mi
40K· 24.85 mi
3:12:51
Rank: #10311 (+45)
24M → 40K
6:49 | 7:58/mi
25.2M
3:15:50
Rank: #10299 (+12)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:23:42
Rank: #10270 (+29)
25.2M → Finish
7:52 | 7:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:06
Pace7:34 /mi
2nd Half
Distance13.11 mi
Time1:44:36
Pace7:59 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:4724:037:4424:03
7:44
-
10K
6.21 mi11:37:4947:057:3523:02
7:25
-0:19
15K
9.32 mi12:00:491:10:057:3123:00
7:24
-0:01
20K
12.43 mi12:24:391:33:557:3323:50
7:40
+0:16
Half
13.11 mi12:29:501:39:067:345:11
7:36
-0:04
25K
15.53 mi12:48:381:57:547:3518:48
7:45
+0:09
30K
18.64 mi13:13:182:22:347:3924:40
7:56
+0:11
20M
20.00 mi13:24:172:33:337:4110:59
8:05
+0:09
21M
21.00 mi13:33:112:42:277:448:54
8:54
+0:49
35K
21.75 mi13:38:502:48:067:445:39
7:33
-1:21
23M
23.00 mi13:48:582:58:147:4510:08
8:06
+0:33
24M
24.00 mi13:56:463:06:027:457:48
7:48
-0:18
40K
24.85 mi14:03:353:12:517:466:49
7:58
+0:10
25.2M
25.20 mi14:06:343:15:507:462:59
8:39
+0:41
Finish
26.22 mi14:14:263:23:427:467:52
7:43
-0:56

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

7:24 /mi

Average Pace

7:46 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

46:02

23% of race

Time at Steady Pace

1:57:51

58% of race

Time at Slower Pace

39:49

20% of race

Average Pace: 7:46 /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 mi11:14:4724:037:4424:03
7:44
#11844
10K
6.21 mi11:37:4947:057:3523:02
7:25
#10716
15K
9.32 mi12:00:491:10:057:3123:00
7:24
#10236
20K
12.43 mi12:24:391:33:557:3323:50
7:40
#10329
Half
13.11 mi12:29:501:39:067:345:11
7:36
#10371
25K
15.53 mi12:48:381:57:547:3518:48
7:45
#10404
30K
18.64 mi13:13:182:22:347:3924:40
7:56
#10350
20M
20.00 mi13:24:172:33:337:4110:59
8:05
#10384
21M
21.00 mi13:33:112:42:277:448:54
8:54
#10503
35K
21.75 mi13:38:502:48:067:445:39
7:33
#10420
23M
23.00 mi13:48:582:58:147:4510:08
8:06
#10395
24M
24.00 mi13:56:463:06:027:457:48
7:48
#10356
40K
24.85 mi14:03:353:12:517:466:49
7:58
#10311
25.2M
25.20 mi14:06:343:15:507:462:59
8:39
#10299
Finish
26.22 mi14:14:263:23:427:467:52
7:43
#10270
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi11844276827689377(Top 35%)1578(Top 14%)1578(Top 87%)
10K6.21 mi3.10 mi10716+11282186+5822186+5829769(Top 37%)1720(Top 15%)1720(Top 95%)
15K9.32 mi3.11 mi10236+4801930+2561930+2569377(Top 35%)1578(Top 14%)1578(Top 87%)
20K12.43 mi3.11 mi10329-931991-611991-6110693(Top 40%)2254(Top 20%)2254(Top 124%)
Half13.11 mi0.68 mi10371-422013-222013-2211040(Top 41%)2382(Top 21%)2382(Top 131%)
25K15.53 mi2.42 mi10404-332047-342047-3410745(Top 40%)2358(Top 21%)2358(Top 130%)
30K18.64 mi3.11 mi10350+542077-302077-3010445(Top 39%)2363(Top 21%)2363(Top 130%)
20M20.00 mi1.36 mi10384-342113-362113-3610894(Top 41%)2674(Top 23%)2674(Top 147%)
21M21.00 mi1.00 mi10503-1192205-922205-9212851(Top 48%)3859(Top 34%)3859(Top 212%)
35K21.75 mi0.75 mi10420+832181+242181+248981(Top 34%)1918(Top 17%)1918(Top 106%)
23M23.00 mi1.25 mi10395+252194-132194-1310416(Top 39%)2710(Top 24%)2710(Top 149%)
24M24.00 mi1.00 mi10356+392201-72201-79820(Top 37%)2505(Top 22%)2505(Top 138%)
40K24.85 mi0.85 mi10311+452207-62207-69897(Top 37%)2595(Top 23%)2595(Top 143%)
25.2M25.20 mi0.35 mi10299+122213-62213-610492(Top 39%)2918(Top 26%)2918(Top 161%)
Finish26.22 mi1.02 mi10270+292232-192232-1910118(Top 38%)2749(Top 24%)2749(Top 151%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9377

Females

1578

F45-49

1578

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

9769

Females

1720

F45-49

1720

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9377

Females

1578

F45-49

1578

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10693

Females

2254

F45-49

2254

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

11040

Females

2382

F45-49

2382

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10745

Females

2358

F45-49

2358

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

10445

Females

2363

F45-49

2363

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

10894

Females

2674

F45-49

2674

20M→21M

20.0 - 21.0 mi

Top 48%
×8stories
+106ft-24ft

Overall

12851

Females

3859

F45-49

3859

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

8981

Females

1918

F45-49

1918

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

10416

Females

2710

F45-49

2710

23M→24M

23.0 - 24.0 mi

Top 37%
×6stories
+12ft-82ft

Overall

9820

Females

2505

F45-49

2505

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9897

Females

2595

F45-49

2595

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10492

Females

2918

F45-49

2918

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10118

Females

2749

F45-49

2749

Passing Analysis

Category:
Athletes Passed
2727*
Passed By
1153
Net Change
+1574
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11844
5K → 10K116739+1128#11844#10716
10K → 15K52040+480#10716#10236
15K → 20K122*215-93#10236#10329
20K → Half1456-42#10329#10371
Half → 25K132165-33#10371#10404
25K → 30K172118+54#10404#10350
30K → 20M61*95-34#10350#10384
20M → 21M56175-119#10384#10503
21M → 35K929+83#10503#10420
35K → 23M9570+25#10420#10395
23M → 24M7738+39#10395#10356
24M → 40K9247+45#10356#10311
40K → 25.2M4230+12#10311#10299
25.2M → Finish8556+29#10299#10270
TOTALS2727*1153+1574

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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