Boston Marathon logo
BOSTON MARATHON 2023

Rebecca Gorski

Bib: 16838•F

MI

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 47%
Division (F18-39)
#0 / 4884
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
8:12/mi
25:30
↑ 97↓ 3451.5%
10K· 6.21 mi
8:10/mi
50:51
↑ 79↓ 1380.4%
15K· 9.32 mi
8:10/mi
1:16:14
↑ 67↓ 78
20K· 12.43 mi
8:11/mi
1:41:38
↑ 106↓ 860.1%
Half· 13.11 mi
8:07/mi
1:47:10
↑ 19↓ 370.5%
25K· 15.53 mi
8:18/mi
2:07:17
↑ 66↓ 880.2%
30K· 18.64 mi
8:44/mi
2:34:24
↑ 181↓ 1480.2%
20M
8:57/mi
2:46:34
↑ 64↓ 500.2%
21M
9:45/mi
2:56:19
↑ 106↓ 241.6%
35K· 21.75 mi
8:37/mi
3:02:46
↑ 17↓ 861.7%
23M
9:10/mi
3:14:15
↑ 23↓ 630.6%
24M
9:00/mi
3:23:15
↓ 821.3%
40K· 24.85 mi
9:02/mi
3:30:58
↓ 200.3%
25.2M
9:49/mi
3:34:21
↑ 13↓ 160.2%
Finish· 26.22 mi
8:43/mi
3:43:14
↑ 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
Time1:47:10
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time1:56:04
Pace8:51 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:4225:308:1225:30
8:12
-
10K
6.21 mi11:41:0350:518:1125:21
8:10
-0:02
15K
9.32 mi12:06:261:16:148:1125:23
8:10
0:00
20K
12.43 mi12:31:501:41:388:1125:24
8:11
+0:01
Half
13.11 mi12:37:221:47:108:105:32
8:07
-0:04
25K
15.53 mi12:57:292:07:178:1220:07
8:18
+0:11
30K
18.64 mi13:24:362:34:248:1727:07
8:44
+0:26
20M
20.00 mi13:36:462:46:348:2012:10
8:57
+0:13
21M
21.00 mi13:46:312:56:198:249:45
9:45
+0:48
35K
21.75 mi13:52:583:02:468:246:27
8:37
-1:08
23M
23.00 mi14:04:273:14:158:2711:29
9:10
+0:33
24M
24.00 mi14:13:273:23:158:289:00
9:00
-0:10
40K
24.85 mi14:21:103:30:588:297:43
9:02
+0:02
25.2M
25.20 mi14:24:333:34:218:303:23
9:49
+0:47
Finish
26.22 mi14:33:263:43:148:318:53
8:43
-1:06

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

8:07 /mi

Average Pace

8:31 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:17

57% of race

Time at Steady Pace

54:37

24% of race

Time at Slower Pace

41:20

19% of race

Average Pace: 8:31 /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 mi11:15:4225:308:1225:30
8:12
#15534
10K
6.21 mi11:41:0350:518:1125:21
8:10
#15711
15K
9.32 mi12:06:261:16:148:1125:23
8:10
#15663
20K
12.43 mi12:31:501:41:388:1125:24
8:11
#15431
Half
13.11 mi12:37:221:47:108:105:32
8:07
#15420
25K
15.53 mi12:57:292:07:178:1220:07
8:18
#15314
30K
18.64 mi13:24:362:34:248:1727:07
8:44
#15360
20M
20.00 mi13:36:462:46:348:2012:10
8:57
#15438
21M
21.00 mi13:46:312:56:198:249:45
9:45
#15509
35K
21.75 mi13:52:583:02:468:246:27
8:37
#15521
23M
23.00 mi14:04:273:14:158:2711:29
9:10
#15595
24M
24.00 mi14:13:273:23:158:289:00
9:00
#15665
40K
24.85 mi14:21:103:30:588:297:43
9:02
#15692
25.2M
25.20 mi14:24:333:34:218:303:23
9:49
#15715
Finish
26.22 mi14:33:263:43:148:318:53
8:43
#15728
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi155344993499315663(Top 59%)5089(Top 45%)5089(Top 104%)
10K6.21 mi3.10 mi15711-1775100-1075100-10715987(Top 60%)5268(Top 46%)5268(Top 108%)
15K9.32 mi3.11 mi15663+485076+245076+2415663(Top 59%)5089(Top 45%)5089(Top 104%)
20K12.43 mi3.11 mi15431+2324950+1264950+12614810(Top 56%)4597(Top 40%)4597(Top 94%)
Half13.11 mi0.68 mi15420+114946+44946+415273(Top 57%)4858(Top 43%)4858(Top 99%)
25K15.53 mi2.42 mi15314+1064907+394907+3914962(Top 56%)4814(Top 42%)4814(Top 99%)
30K18.64 mi3.11 mi15360-464985-784985-7815667(Top 59%)5311(Top 46%)5311(Top 109%)
20M20.00 mi1.36 mi15438-785055-705055-7016292(Top 61%)5741(Top 50%)5741(Top 118%)
21M21.00 mi1.00 mi15509-715122-675122-6717061(Top 64%)6224(Top 54%)6224(Top 127%)
35K21.75 mi0.75 mi15521-125147-255147-2515995(Top 60%)5685(Top 50%)5685(Top 116%)
23M23.00 mi1.25 mi15595-745223-765223-7616916(Top 64%)6242(Top 55%)6242(Top 128%)
24M24.00 mi1.00 mi15665-705282-595282-5917243(Top 65%)6481(Top 57%)6481(Top 133%)
40K24.85 mi0.85 mi15692-275300-185300-1816296(Top 61%)6021(Top 53%)6021(Top 123%)
25.2M25.20 mi0.35 mi15715-235311-115311-1116612(Top 62%)6201(Top 54%)6201(Top 127%)
Finish26.22 mi1.02 mi15728-135329-185329-1816588(Top 62%)6142(Top 54%)6142(Top 126%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

15663

Females

5089

F18-39

5089

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

15987

Females

5268

F18-39

5268

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

15663

Females

5089

F18-39

5089

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

14810

Females

4597

F18-39

4597

20K→Half

12.4 - 13.1 mi

Top 57%
×2story building
+19ft-37ft

Overall

15273

Females

4858

F18-39

4858

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

14962

Females

4814

F18-39

4814

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

15667

Females

5311

F18-39

5311

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

16292

Females

5741

F18-39

5741

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

17061

Females

6224

F18-39

6224

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

15995

Females

5685

F18-39

5685

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

16916

Females

6242

F18-39

6242

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

17243

Females

6481

F18-39

6481

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16296

Females

6021

F18-39

6021

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16612

Females

6201

F18-39

6201

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

16588

Females

6142

F18-39

6142

Passing Analysis

Category:
Athletes Passed
1524
Passed By
1718
Net Change
-194
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15534
5K → 10K225402-177#15534#15711
10K → 15K205157+48#15711#15663
15K → 20K29765+232#15663#15431
20K → Half4332+11#15431#15420
Half → 25K18377+106#15420#15314
25K → 30K168214-46#15314#15360
30K → 20M62140-78#15360#15438
20M → 21M67138-71#15438#15509
21M → 35K4254-12#15509#15521
35K → 23M59133-74#15521#15595
23M → 24M48118-70#15595#15665
24M → 40K5077-27#15665#15692
40K → 25.2M2043-23#15692#15715
25.2M → Finish5568-13#15715#15728
TOTALS15241718-194
📊

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