Boston Marathon logo
BOSTON MARATHON 2023

Kristen Zabbo

Bib: 24662•F

RI

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
8:41/mi
26:59
↑ 97↓ 3451.5%
10K· 6.21 mi
8:46/mi
54:12
↑ 79↓ 1380.4%
15K· 9.32 mi
8:49/mi
1:21:35
↑ 67↓ 78
20K· 12.43 mi
8:50/mi
1:49:02
↑ 106↓ 860.1%
Half· 13.11 mi
8:48/mi
1:55:02
↑ 19↓ 370.5%
25K· 15.53 mi
9:01/mi
2:16:53
↑ 66↓ 880.2%
30K· 18.64 mi
9:24/mi
2:46:04
↑ 181↓ 1480.2%
20M
9:45/mi
2:59:19
↑ 64↓ 500.2%
21M
10:38/mi
3:09:57
↑ 106↓ 241.6%
35K· 21.75 mi
9:25/mi
3:17:00
↑ 17↓ 861.7%
23M
9:32/mi
3:28:56
↑ 23↓ 630.6%
24M
9:23/mi
3:38:19
↓ 821.3%
40K· 24.85 mi
9:30/mi
3:46:26
↓ 200.3%
25.2M
9:57/mi
3:49:52
↑ 13↓ 160.2%
Finish· 26.22 mi
8:20/mi
3:58:22
↑ 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
Time1:55:02
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:03:20
Pace9:24 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:2226:598:4126:59
8:41
-
10K
6.21 mi12:09:3554:128:4327:13
8:46
+0:05
15K
9.32 mi12:36:581:21:358:4527:23
8:49
+0:03
20K
12.43 mi13:04:251:49:028:4627:27
8:50
+0:01
Half
13.11 mi13:10:251:55:028:466:00
8:48
-0:02
25K
15.53 mi13:32:162:16:538:4921:51
9:01
+0:13
30K
18.64 mi14:01:272:46:048:5529:11
9:24
+0:23
20M
20.00 mi14:14:422:59:198:5813:15
9:45
+0:21
21M
21.00 mi14:25:203:09:579:0310:38
10:38
+0:53
35K
21.75 mi14:32:233:17:009:037:03
9:25
-1:13
23M
23.00 mi14:44:193:28:569:0511:56
9:32
+0:07
24M
24.00 mi14:53:423:38:199:069:23
9:23
-0:09
40K
24.85 mi15:01:493:46:269:078:07
9:30
+0:07
25.2M
25.20 mi15:05:153:49:529:073:26
9:57
+0:27
Finish
26.22 mi15:13:453:58:229:068:30
8:20
-1:37

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

8:20 /mi

Average Pace

9:06 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:25:23

61% of race

Time at Steady Pace

1:05:40

28% of race

Time at Slower Pace

27:19

11% of race

Average Pace: 9:05 /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 mi11:42:2226:598:4126:59
8:41
#18791
10K
6.21 mi12:09:3554:128:4327:13
8:46
#19263
15K
9.32 mi12:36:581:21:358:4527:23
8:49
#19354
20K
12.43 mi13:04:251:49:028:4627:27
8:50
#19196
Half
13.11 mi13:10:251:55:028:466:00
8:48
#19201
25K
15.53 mi13:32:162:16:538:4921:51
9:01
#19153
30K
18.64 mi14:01:272:46:048:5529:11
9:24
#19144
20M
20.00 mi14:14:422:59:198:5813:15
9:45
#19201
21M
21.00 mi14:25:203:09:579:0310:38
10:38
#19260
35K
21.75 mi14:32:233:17:009:037:03
9:25
#19284
23M
23.00 mi14:44:193:28:569:0511:56
9:32
#19222
24M
24.00 mi14:53:423:38:199:069:23
9:23
#19225
40K
24.85 mi15:01:493:46:269:078:07
9:30
#19184
25.2M
25.20 mi15:05:153:49:529:073:26
9:57
#19155
Finish
26.22 mi15:13:453:58:229:068:30
8:20
#19014
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi187917071707119602(Top 74%)7446(Top 65%)7446(Top 410%)
10K6.21 mi3.10 mi19263-4727316-2457316-24519740(Top 74%)7540(Top 66%)7540(Top 415%)
15K9.32 mi3.11 mi19354-917355-397355-3919602(Top 74%)7446(Top 65%)7446(Top 410%)
20K12.43 mi3.11 mi19196+1587233+1227233+12218868(Top 71%)7010(Top 61%)7010(Top 386%)
Half13.11 mi0.68 mi19201-57235-27235-219497(Top 73%)7375(Top 65%)7375(Top 406%)
25K15.53 mi2.42 mi19153+487210+257210+2519027(Top 71%)7147(Top 63%)7147(Top 393%)
30K18.64 mi3.11 mi19144+97223-137223-1319014(Top 71%)7202(Top 63%)7202(Top 396%)
20M20.00 mi1.36 mi19201-577267-447267-4419716(Top 74%)7708(Top 67%)7708(Top 424%)
21M21.00 mi1.00 mi19260-597318-517318-5119974(Top 75%)7913(Top 69%)7913(Top 435%)
35K21.75 mi0.75 mi19284-247338-207338-2019638(Top 74%)7723(Top 68%)7723(Top 425%)
23M23.00 mi1.25 mi19222+627304+347304+3418459(Top 69%)7111(Top 62%)7111(Top 391%)
24M24.00 mi1.00 mi19225-37319-157319-1518804(Top 71%)7333(Top 64%)7333(Top 404%)
40K24.85 mi0.85 mi19184+417303+167303+1618328(Top 69%)7120(Top 62%)7120(Top 392%)
25.2M25.20 mi0.35 mi19155+297290+137290+1317263(Top 65%)6589(Top 58%)6589(Top 363%)
Finish26.22 mi1.02 mi19014+1417219+717219+7114400(Top 54%)4962(Top 43%)4962(Top 273%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

19602

Females

7446

F45-49

7446

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19740

Females

7540

F45-49

7540

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

19602

Females

7446

F45-49

7446

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

18868

Females

7010

F45-49

7010

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

19497

Females

7375

F45-49

7375

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

19027

Females

7147

F45-49

7147

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

19014

Females

7202

F45-49

7202

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

19716

Females

7708

F45-49

7708

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

19974

Females

7913

F45-49

7913

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

19638

Females

7723

F45-49

7723

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

18459

Females

7111

F45-49

7111

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

18804

Females

7333

F45-49

7333

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

18328

Females

7120

F45-49

7120

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17263

Females

6589

F45-49

6589

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14400

Females

4962

F45-49

4962

Passing Analysis

Category:
Athletes Passed
1460
Passed By
1683
Net Change
-223
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18791
5K → 10K155627-472#18791#19263
10K → 15K148239-91#19263#19354
15K → 20K24183+158#19354#19196
20K → Half2833-5#19196#19201
Half → 25K13385+48#19201#19153
25K → 30K177168+9#19153#19144
30K → 20M68125-57#19144#19201
20M → 21M60119-59#19201#19260
21M → 35K3458-24#19260#19284
35K → 23M9937+62#19284#19222
23M → 24M5558-3#19222#19225
24M → 40K7635+41#19225#19184
40K → 25.2M378+29#19184#19155
25.2M → Finish1498+141#19155#19014
TOTALS14601683-223
📊

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