Boston Marathon logo
BOSTON MARATHON 2023

Katie Gordon

Bib: 9944•F

BC

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 17%
Gender (Female)
#0 / 11423
Top 3%
Division (F18-39)
#0 / 4884
Top 6%
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
7:05/mi
22:01
↑ 97↓ 3451.5%
10K· 6.21 mi
6:50/mi
43:14
↑ 79↓ 1380.4%
15K· 9.32 mi
6:54/mi
1:04:40
↑ 67↓ 78
20K· 12.43 mi
6:55/mi
1:26:09
↑ 106↓ 860.1%
Half· 13.11 mi
6:55/mi
1:30:52
↑ 19↓ 370.5%
25K· 15.53 mi
6:58/mi
1:47:46
↑ 66↓ 880.2%
30K· 18.64 mi
7:05/mi
2:09:46
↑ 181↓ 1480.2%
20M
6:59/mi
2:19:16
↑ 64↓ 500.2%
21M
7:20/mi
2:26:36
↑ 106↓ 241.6%
35K· 21.75 mi
6:42/mi
2:31:37
↑ 17↓ 861.7%
23M
6:51/mi
2:40:11
↑ 23↓ 630.6%
24M
6:51/mi
2:47:02
↓ 821.3%
40K· 24.85 mi
6:51/mi
2:52:53
↓ 200.3%
25.2M
7:24/mi
2:55:26
↑ 13↓ 160.2%
Finish· 26.22 mi
6:30/mi
3:02:03
↑ 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 Half⚖️ Balanced
Distance13.11 mi
Time1:30:52
Pace6:56 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:31:11
Pace6:57 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:2822:017:0522:01
7:05
-
10K
6.21 mi11:09:4143:146:5721:13
6:50
-0:15
15K
9.32 mi11:31:071:04:406:5621:26
6:54
+0:04
20K
12.43 mi11:52:361:26:096:5621:29
6:55
+0:01
Half
13.11 mi11:57:191:30:526:564:43
6:55
0:00
25K
15.53 mi12:14:131:47:466:5616:54
6:58
+0:03
30K
18.64 mi12:36:132:09:466:5822:00
7:05
+0:07
20M
20.00 mi12:45:432:19:166:589:30
6:59
-0:06
21M
21.00 mi12:53:032:26:366:597:20
7:20
+0:21
35K
21.75 mi12:58:042:31:376:585:01
6:42
-0:38
23M
23.00 mi13:06:382:40:116:588:34
6:51
+0:09
24M
24.00 mi13:13:292:47:026:586:51
6:51
0:00
40K
24.85 mi13:19:202:52:536:575:51
6:51
0:00
25.2M
25.20 mi13:21:532:55:266:582:33
7:24
+0:33
Finish
26.22 mi13:28:303:02:036:576:37
6:30
-0:54

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

6:30 /mi

Average Pace

6:57 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:10

95% of race

Time at Steady Pace

9:53

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:57 /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 mi10:48:2822:017:0522:01
7:05
#6804
10K
6.21 mi11:09:4143:146:5721:13
6:50
#6263
15K
9.32 mi11:31:071:04:406:5621:26
6:54
#6116
20K
12.43 mi11:52:361:26:096:5621:29
6:55
#5930
Half
13.11 mi11:57:191:30:526:564:43
6:55
#5937
25K
15.53 mi12:14:131:47:466:5616:54
6:58
#5829
30K
18.64 mi12:36:132:09:466:5822:00
7:05
#5592
20M
20.00 mi12:45:432:19:166:589:30
6:59
#5438
21M
21.00 mi12:53:032:26:366:597:20
7:20
#5293
35K
21.75 mi12:58:042:31:376:585:01
6:42
#5204
23M
23.00 mi13:06:382:40:116:588:34
6:51
#5018
24M
24.00 mi13:13:292:47:026:586:51
6:51
#4922
40K
24.85 mi13:19:202:52:536:575:51
6:51
#4812
25.2M
25.20 mi13:21:532:55:266:582:33
7:24
#4775
Finish
26.22 mi13:28:303:02:036:576:37
6:30
#4627
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi68046686685962(Top 22%)521(Top 5%)521(Top 11%)
10K6.21 mi3.10 mi6263+541568+100568+1005580(Top 21%)446(Top 4%)446(Top 9%)
15K9.32 mi3.11 mi6116+147538+30538+305962(Top 22%)521(Top 5%)521(Top 11%)
20K12.43 mi3.11 mi5930+186506+32506+325420(Top 20%)413(Top 4%)413(Top 8%)
Half13.11 mi0.68 mi5937-7503+3503+36136(Top 23%)550(Top 5%)550(Top 11%)
25K15.53 mi2.42 mi5829+108477+26477+265423(Top 20%)423(Top 4%)423(Top 9%)
30K18.64 mi3.11 mi5592+237447+30447+304836(Top 18%)377(Top 3%)377(Top 8%)
20M20.00 mi1.36 mi5438+154427+20427+204006(Top 15%)292(Top 3%)292(Top 6%)
21M21.00 mi1.00 mi5293+145414+13414+133822(Top 14%)282(Top 2%)282(Top 6%)
35K21.75 mi0.75 mi5204+89405+9405+93655(Top 14%)272(Top 2%)272(Top 6%)
23M23.00 mi1.25 mi5018+186387+18387+182934(Top 11%)195(Top 2%)195(Top 4%)
24M24.00 mi1.00 mi4922+96375+12375+123963(Top 15%)343(Top 3%)343(Top 7%)
40K24.85 mi0.85 mi4812+110358+17358+173062(Top 12%)249(Top 2%)249(Top 5%)
25.2M25.20 mi0.35 mi4775+373583583475(Top 13%)338(Top 3%)338(Top 7%)
Finish26.22 mi1.02 mi4627+148336+22336+222485(Top 9%)198(Top 2%)198(Top 4%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21story building
+97ft-345ft

Overall

5962

Females

521

F18-39

521

5K→10K

3.1 - 6.2 mi

Top 21%
×5story building
+79ft-138ft

Overall

5580

Females

446

F18-39

446

10K→15K

6.2 - 9.3 mi

Top 22%
×3story building
+67ft-78ft

Overall

5962

Females

521

F18-39

521

15K→20K

9.3 - 12.4 mi

Top 20%
×5story building
+106ft-86ft

Overall

5420

Females

413

F18-39

413

20K→Half

12.4 - 13.1 mi

Top 23%
×2story building
+19ft-37ft

Overall

6136

Females

550

F18-39

550

Half→25K

13.1 - 15.5 mi

Top 20%
×4story building
+66ft-88ft

Overall

5423

Females

423

F18-39

423

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

4836

Females

377

F18-39

377

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

4006

Females

292

F18-39

292

20M→21M

20.0 - 21.0 mi

Top 14%
×8story building
+106ft-24ft

Overall

3822

Females

282

F18-39

282

21M→35K

21.0 - 21.8 mi

Top 14%
×7story building
+17ft-86ft

Overall

3655

Females

272

F18-39

272

35K→23M

21.8 - 23.0 mi

Top 11%
×5story building
+23ft-63ft

Overall

2934

Females

195

F18-39

195

23M→24M

23.0 - 24.0 mi

Top 15%
×6story building
+12ft-82ft

Overall

3963

Females

343

F18-39

343

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3062

Females

249

F18-39

249

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3475

Females

338

F18-39

338

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2story building
+22ft-21ft

Overall

2485

Females

198

F18-39

198

Passing Analysis

Category:
Athletes Passed
2422
Passed By
245
Net Change
+2177
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6804
5K → 10K57635+541#6804#6263
10K → 15K19952+147#6263#6116
15K → 20K21529+186#6116#5930
20K → Half1825-7#5930#5937
Half → 25K14436+108#5937#5829
25K → 30K25720+237#5829#5592
30K → 20M1617+154#5592#5438
20M → 21M1494+145#5438#5293
21M → 35K956+89#5293#5204
35K → 23M1926+186#5204#5018
23M → 24M1059+96#5018#4922
24M → 40K1155+110#4922#4812
40K → 25.2M436+37#4812#4775
25.2M → Finish1535+148#4775#4627
TOTALS2422245+2177
📊

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