Boston Marathon logo
BOSTON MARATHON 2023

Kara Rusch

Bib: 19874•F

NY

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 49%
Division (F55-59)
#0 / 815
Top 26%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:19/mi
25:51
↑ 97↓ 3451.5%
10K· 6.21 mi
8:12/mi
51:19
↑ 79↓ 1380.4%
15K· 9.32 mi
8:22/mi
1:17:20
↑ 67↓ 78
20K· 12.43 mi
8:32/mi
1:43:52
↑ 106↓ 860.1%
Half· 13.11 mi
8:26/mi
1:49:37
↑ 19↓ 370.5%
25K· 15.53 mi
8:35/mi
2:10:26
↑ 66↓ 880.2%
30K· 18.64 mi
9:10/mi
2:38:56
↑ 181↓ 1480.2%
20M
9:30/mi
2:51:51
↑ 64↓ 500.2%
21M
10:50/mi
3:02:41
↑ 106↓ 241.6%
35K· 21.75 mi
9:04/mi
3:09:28
↑ 17↓ 861.7%
23M
9:34/mi
3:21:27
↑ 23↓ 630.6%
24M
9:06/mi
3:30:33
↓ 821.3%
40K· 24.85 mi
9:28/mi
3:38:39
↓ 200.3%
25.2M
10:18/mi
3:42:12
↑ 13↓ 160.2%
Finish· 26.22 mi
9:11/mi
3:51:33
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:37
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time2:01:56
Pace9:18 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:3325:518:1925:51
8:19
-
10K
6.21 mi11:43:0151:198:1625:28
8:12
-0:07
15K
9.32 mi12:09:021:17:208:1826:01
8:22
+0:10
20K
12.43 mi12:35:341:43:528:2126:32
8:32
+0:10
Half
13.11 mi12:41:191:49:378:225:45
8:26
-0:06
25K
15.53 mi13:02:082:10:268:2420:49
8:35
+0:09
30K
18.64 mi13:30:382:38:568:3228:30
9:10
+0:35
20M
20.00 mi13:43:332:51:518:3612:55
9:30
+0:20
21M
21.00 mi13:54:233:02:418:4210:50
10:50
+1:20
35K
21.75 mi14:01:103:09:288:436:47
9:04
-1:46
23M
23.00 mi14:13:093:21:278:4611:59
9:34
+0:30
24M
24.00 mi14:22:153:30:338:469:06
9:06
-0:28
40K
24.85 mi14:30:213:38:398:488:06
9:28
+0:22
25.2M
25.20 mi14:33:543:42:128:493:33
10:18
+0:50
Finish
26.22 mi14:43:153:51:338:509:21
9:11
-1:07

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

8:12 /mi

Average Pace

8:50 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:26

56% of race

Time at Steady Pace

53:44

23% of race

Time at Slower Pace

47:23

20% of race

Average Pace: 8:50 /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 mi11:17:3325:518:1925:51
8:19
#16310
10K
6.21 mi11:43:0151:198:1625:28
8:12
#16236
15K
9.32 mi12:09:021:17:208:1826:01
8:22
#16500
20K
12.43 mi12:35:341:43:528:2126:32
8:32
#16687
Half
13.11 mi12:41:191:49:378:225:45
8:26
#16710
25K
15.53 mi13:02:082:10:268:2420:49
8:35
#16717
30K
18.64 mi13:30:382:38:568:3228:30
9:10
#16928
20M
20.00 mi13:43:332:51:518:3612:55
9:30
#17082
21M
21.00 mi13:54:233:02:418:4210:50
10:50
#17378
35K
21.75 mi14:01:103:09:288:436:47
9:04
#17417
23M
23.00 mi14:13:093:21:278:4611:59
9:34
#17508
24M
24.00 mi14:22:153:30:338:469:06
9:06
#17541
40K
24.85 mi14:30:213:38:398:488:06
9:28
#17607
25.2M
25.20 mi14:33:543:42:128:493:33
10:18
#17624
Finish
26.22 mi14:43:153:51:338:509:21
9:11
#17680
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi163105477547717007(Top 64%)5921(Top 52%)5921(Top 727%)
10K6.21 mi3.10 mi16236+745418+595418+5916242(Top 61%)5427(Top 48%)5427(Top 666%)
15K9.32 mi3.11 mi16500-2645595-1775595-17717007(Top 64%)5921(Top 52%)5921(Top 727%)
20K12.43 mi3.11 mi16687-1875728-1335728-13317134(Top 64%)6013(Top 53%)6013(Top 738%)
Half13.11 mi0.68 mi16710-235751-235751-2317372(Top 65%)6118(Top 54%)6118(Top 751%)
25K15.53 mi2.42 mi16717-75781-305781-3016751(Top 63%)5871(Top 51%)5871(Top 720%)
30K18.64 mi3.11 mi16928-2115920-1395920-13918046(Top 68%)6678(Top 58%)6678(Top 819%)
20M20.00 mi1.36 mi17082-1546019-996019-9918880(Top 71%)7228(Top 63%)7228(Top 887%)
21M21.00 mi1.00 mi17378-2966221-2026221-20220467(Top 77%)8177(Top 72%)8177(Top 1003%)
35K21.75 mi0.75 mi17417-396255-346255-3418184(Top 68%)6936(Top 61%)6936(Top 851%)
23M23.00 mi1.25 mi17508-916327-726327-7218612(Top 70%)7189(Top 63%)7189(Top 882%)
24M24.00 mi1.00 mi17541-336357-306357-3017681(Top 66%)6732(Top 59%)6732(Top 826%)
40K24.85 mi0.85 mi17607-666410-536410-5318257(Top 69%)7077(Top 62%)7077(Top 868%)
25.2M25.20 mi0.35 mi17624-176427-176427-1718471(Top 69%)7204(Top 63%)7204(Top 884%)
Finish26.22 mi1.02 mi17680-566465-386465-3818819(Top 71%)7341(Top 64%)7341(Top 901%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

17007

Females

5921

F55-59

5921

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

16242

Females

5427

F55-59

5427

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

17007

Females

5921

F55-59

5921

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

17134

Females

6013

F55-59

6013

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

17372

Females

6118

F55-59

6118

Half→25K

13.1 - 15.5 mi

Top 63%
×4story building
+66ft-88ft

Overall

16751

Females

5871

F55-59

5871

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

18046

Females

6678

F55-59

6678

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

18880

Females

7228

F55-59

7228

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

20467

Females

8177

F55-59

8177

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

18184

Females

6936

F55-59

6936

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

18612

Females

7189

F55-59

7189

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

17681

Females

6732

F55-59

6732

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

18257

Females

7077

F55-59

7077

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

18471

Females

7204

F55-59

7204

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2story building
+22ft-21ft

Overall

18819

Females

7341

F55-59

7341

Passing Analysis

Category:
Athletes Passed
1116
Passed By
2486
Net Change
-1370
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16310
5K → 10K320246+74#16310#16236
10K → 15K104368-264#16236#16500
15K → 20K112299-187#16500#16687
20K → Half2245-23#16687#16710
Half → 25K127134-7#16710#16717
25K → 30K116327-211#16717#16928
30K → 20M37191-154#16928#17082
20M → 21M24320-296#17082#17378
21M → 35K4079-39#17378#17417
35K → 23M65156-91#17417#17508
23M → 24M4881-33#17508#17541
24M → 40K39105-66#17541#17607
40K → 25.2M2441-17#17607#17624
25.2M → Finish3894-56#17624#17680
TOTALS11162486-1370
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing