Boston Marathon logo
BOSTON MARATHON 2023

Kate Imboden

Bib: 11512•F

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 28%
Gender (Female)
#0 / 11423
Top 9%
Division (F18-39)
#0 / 4884
Top 18%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:11
Rank: #9318
Start → 5K
23:11 | 7:28/mi
10K· 6.21 mi
46:15
Rank: #9531 (-213)
5K → 10K
23:04 | 7:25/mi
15K· 9.32 mi
1:09:27
Rank: #9624 (-93)
10K → 15K
23:12 | 7:28/mi
20K· 12.43 mi
1:32:36
Rank: #9426 (+198)
15K → 20K
23:09 | 7:27/mi
Half· 13.11 mi
1:37:37
Rank: #9396 (+30)
20K → Half
5:01 | 7:21/mi
25K· 15.53 mi
1:55:41
Rank: #9196 (+200)
Half → 25K
18:04 | 7:27/mi
30K· 18.64 mi
2:18:39
Rank: #8666 (+530)
25K → 30K
22:58 | 7:24/mi
20M
2:28:43
Rank: #8450 (+216)
30K → 20M
10:04 | 7:24/mi
21M
2:36:20
Rank: #8228 (+222)
20M → 21M
7:37 | 7:37/mi
35K· 21.75 mi
2:41:36
Rank: #8104 (+124)
21M → 35K
5:16 | 7:02/mi
23M
2:50:49
Rank: #7902 (+202)
35K → 23M
9:13 | 7:22/mi
24M
2:57:59
Rank: #7755 (+147)
23M → 24M
7:10 | 7:10/mi
40K· 24.85 mi
3:04:13
Rank: #7627 (+128)
24M → 40K
6:14 | 7:17/mi
25.2M
3:06:54
Rank: #7583 (+44)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
3:14:12
Rank: #7512 (+71)
25.2M → Finish
7:18 | 7:10/mi

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 Half
Distance13.11 mi
Time1:37:37
Pace7:27 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:36:35
Pace7:22 /mi
📊Negative Split: 1.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0223:117:2823:11
7:28
-
10K
6.21 mi11:13:0646:157:2723:04
7:25
-0:03
15K
9.32 mi11:36:181:09:277:2723:12
7:28
+0:03
20K
12.43 mi11:59:271:32:367:2723:09
7:27
-0:01
Half
13.11 mi12:04:281:37:377:275:01
7:21
-0:06
25K
15.53 mi12:22:321:55:417:2718:04
7:27
+0:06
30K
18.64 mi12:45:302:18:397:2622:58
7:24
-0:03
20M
20.00 mi12:55:342:28:437:2610:04
7:24
0:00
21M
21.00 mi13:03:112:36:207:277:37
7:37
+0:13
35K
21.75 mi13:08:272:41:367:265:16
7:02
-0:35
23M
23.00 mi13:17:402:50:497:269:13
7:22
+0:20
24M
24.00 mi13:24:502:57:597:257:10
7:10
-0:12
40K
24.85 mi13:31:043:04:137:256:14
7:17
+0:07
25.2M
25.20 mi13:33:453:06:547:252:41
7:47
+0:30
Finish
26.22 mi13:41:033:14:127:257:18
7:10
-0:37

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

7:02 /mi

Average Pace

7:25 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:31

99% of race

Time at Steady Pace

2:41

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:24 /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 mi10:50:0223:117:2823:11
7:28
#9318
10K
6.21 mi11:13:0646:157:2723:04
7:25
#9531
15K
9.32 mi11:36:181:09:277:2723:12
7:28
#9624
20K
12.43 mi11:59:271:32:367:2723:09
7:27
#9426
Half
13.11 mi12:04:281:37:377:275:01
7:21
#9396
25K
15.53 mi12:22:321:55:417:2718:04
7:27
#9196
30K
18.64 mi12:45:302:18:397:2622:58
7:24
#8666
20M
20.00 mi12:55:342:28:437:2610:04
7:24
#8450
21M
21.00 mi13:03:112:36:207:277:37
7:37
#8228
35K
21.75 mi13:08:272:41:367:265:16
7:02
#8104
23M
23.00 mi13:17:402:50:497:269:13
7:22
#7902
24M
24.00 mi13:24:502:57:597:257:10
7:10
#7755
40K
24.85 mi13:31:043:04:137:256:14
7:17
#7627
25.2M
25.20 mi13:33:453:06:547:252:41
7:47
#7583
Finish
26.22 mi13:41:033:14:127:257:18
7:10
#7512
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9318153815389916(Top 37%)1796(Top 16%)1796(Top 37%)
10K6.21 mi3.10 mi9531-2131626-881626-889855(Top 37%)1747(Top 15%)1747(Top 36%)
15K9.32 mi3.11 mi9624-931670-441670-449916(Top 37%)1796(Top 16%)1796(Top 37%)
20K12.43 mi3.11 mi9426+1981601+691601+698927(Top 34%)1450(Top 13%)1450(Top 30%)
Half13.11 mi0.68 mi9396+301595+61595+69055(Top 34%)1479(Top 13%)1479(Top 30%)
25K15.53 mi2.42 mi9196+2001522+731522+738427(Top 32%)1331(Top 12%)1331(Top 27%)
30K18.64 mi3.11 mi8666+5301362+1601362+1606577(Top 25%)790(Top 7%)790(Top 16%)
20M20.00 mi1.36 mi8450+2161298+641298+646255(Top 23%)775(Top 7%)775(Top 16%)
21M21.00 mi1.00 mi8228+2221240+581240+585226(Top 20%)597(Top 5%)597(Top 12%)
35K21.75 mi0.75 mi8104+1241205+351205+355606(Top 21%)656(Top 6%)656(Top 13%)
23M23.00 mi1.25 mi7902+2021147+581147+585672(Top 21%)710(Top 6%)710(Top 15%)
24M24.00 mi1.00 mi7755+1471119+281119+285595(Top 21%)754(Top 7%)754(Top 15%)
40K24.85 mi0.85 mi7627+1281083+361083+365440(Top 20%)795(Top 7%)795(Top 16%)
25.2M25.20 mi0.35 mi7583+441085-21085-25367(Top 20%)859(Top 8%)859(Top 18%)
Finish26.22 mi1.02 mi7512+711081+41081+46211(Top 23%)1135(Top 10%)1135(Top 23%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

9916

Females

1796

F18-39

1796

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

9855

Females

1747

F18-39

1747

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

9916

Females

1796

F18-39

1796

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

8927

Females

1450

F18-39

1450

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9055

Females

1479

F18-39

1479

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

8427

Females

1331

F18-39

1331

25K→30K

15.5 - 18.6 mi

Top 25%
×9stories
+181ft-148ft

Overall

6577

Females

790

F18-39

790

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6255

Females

775

F18-39

775

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5226

Females

597

F18-39

597

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5606

Females

656

F18-39

656

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

5672

Females

710

F18-39

710

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5595

Females

754

F18-39

754

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5440

Females

795

F18-39

795

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5367

Females

859

F18-39

859

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6211

Females

1135

F18-39

1135

Passing Analysis

Category:
Athletes Passed
2602
Passed By
796
Net Change
+1806
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9318
5K → 10K194407-213#9318#9531
10K → 15K129222-93#9531#9624
15K → 20K24446+198#9624#9426
20K → Half4313+30#9426#9396
Half → 25K22222+200#9396#9196
25K → 30K54111+530#9196#8666
30K → 20M2237+216#8666#8450
20M → 21M2253+222#8450#8228
21M → 35K1273+124#8228#8104
35K → 23M2097+202#8104#7902
23M → 24M1558+147#7902#7755
24M → 40K14012+128#7755#7627
40K → 25.2M506+44#7627#7583
25.2M → Finish10029+71#7583#7512
TOTALS2602796+1806
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing