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BOSTON MARATHON 2023

Gwen Jacobson

Bib: 10765•F

MN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 33%
Gender (Female)
#0 / 11423
Top 14%
Masters (Masters Women)
#0 / 6539
Top 5%
Division (F60-64)
#0 / 527
Top 0.6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:32
Rank: #10307
Start → 5K
23:32 | 7:34/mi
10K· 6.21 mi
46:22
Rank: #9687 (+620)
5K → 10K
22:50 | 7:21/mi
15K· 9.32 mi
1:09:18
Rank: #9485 (+202)
10K → 15K
22:56 | 7:23/mi
20K· 12.43 mi
1:32:29
Rank: #9350 (+135)
15K → 20K
23:11 | 7:28/mi
Half· 13.11 mi
1:37:34
Rank: #9362 (-12)
20K → Half
5:05 | 7:27/mi
25K· 15.53 mi
1:56:06
Rank: #9420 (-58)
Half → 25K
18:32 | 7:39/mi
30K· 18.64 mi
2:20:26
Rank: #9433 (-13)
25K → 30K
24:20 | 7:50/mi
20M
2:30:53
Rank: #9308 (+125)
30K → 20M
10:27 | 7:41/mi
21M
2:39:04
Rank: #9225 (+83)
20M → 21M
8:11 | 8:11/mi
35K· 21.75 mi
2:44:43
Rank: #9190 (+35)
21M → 35K
5:39 | 7:33/mi
23M
2:54:37
Rank: #9173 (+17)
35K → 23M
9:54 | 7:54/mi
24M
3:02:05
Rank: #9071 (+102)
23M → 24M
7:28 | 7:28/mi
40K· 24.85 mi
3:08:29
Rank: #8947 (+124)
24M → 40K
6:24 | 7:29/mi
25.2M
3:11:17
Rank: #8908 (+39)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:18:44
Rank: #8810 (+98)
25.2M → Finish
7:27 | 7:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:34
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:41:10
Pace7:43 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4023:327:3423:32
7:34
-
10K
6.21 mi11:12:3046:227:2822:50
7:21
-0:13
15K
9.32 mi11:35:261:09:187:2622:56
7:23
+0:02
20K
12.43 mi11:58:371:32:297:2723:11
7:28
+0:05
Half
13.11 mi12:03:421:37:347:275:05
7:27
-0:01
25K
15.53 mi12:22:141:56:067:2818:32
7:39
+0:12
30K
18.64 mi12:46:342:20:267:3224:20
7:50
+0:11
20M
20.00 mi12:57:012:30:537:3310:27
7:41
-0:09
21M
21.00 mi13:05:122:39:047:348:11
8:11
+0:30
35K
21.75 mi13:10:512:44:437:345:39
7:33
-0:38
23M
23.00 mi13:20:452:54:377:369:54
7:54
+0:21
24M
24.00 mi13:28:133:02:057:357:28
7:28
-0:26
40K
24.85 mi13:34:373:08:297:356:24
7:29
+0:01
25.2M
25.20 mi13:37:253:11:177:352:48
8:07
+0:38
Finish
26.22 mi13:44:523:18:447:357:27
7:19
-0:48

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

7:19 /mi

Average Pace

7:35 /mi

Slowest Pace

8:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:45

94% of race

Time at Steady Pace

10:59

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:35 /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 mi10:49:4023:327:3423:32
7:34
#10307
10K
6.21 mi11:12:3046:227:2822:50
7:21
#9687
15K
9.32 mi11:35:261:09:187:2622:56
7:23
#9485
20K
12.43 mi11:58:371:32:297:2723:11
7:28
#9350
Half
13.11 mi12:03:421:37:347:275:05
7:27
#9362
25K
15.53 mi12:22:141:56:067:2818:32
7:39
#9420
30K
18.64 mi12:46:342:20:267:3224:20
7:50
#9433
20M
20.00 mi12:57:012:30:537:3310:27
7:41
#9308
21M
21.00 mi13:05:122:39:047:348:11
8:11
#9225
35K
21.75 mi13:10:512:44:437:345:39
7:33
#9190
23M
23.00 mi13:20:452:54:377:369:54
7:54
#9173
24M
24.00 mi13:28:133:02:057:357:28
7:28
#9071
40K
24.85 mi13:34:373:08:297:356:24
7:29
#8947
25.2M
25.20 mi13:37:253:11:177:352:48
8:07
#8908
Finish
26.22 mi13:44:523:18:447:357:27
7:19
#8810
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi10307199919999196(Top 35%)1518(Top 13%)1518(Top 288%)
10K6.21 mi3.10 mi9687+6201699+3001699+3009235(Top 35%)1508(Top 13%)1508(Top 286%)
15K9.32 mi3.11 mi9485+2021609+901609+909196(Top 35%)1518(Top 13%)1518(Top 288%)
20K12.43 mi3.11 mi9350+1351576+331576+339026(Top 34%)1500(Top 13%)1500(Top 285%)
Half13.11 mi0.68 mi9362-121582-61582-69863(Top 37%)1818(Top 16%)1818(Top 345%)
25K15.53 mi2.42 mi9420-581620-381620-389876(Top 37%)1945(Top 17%)1945(Top 369%)
30K18.64 mi3.11 mi9433-131663-431663-439607(Top 36%)1972(Top 17%)1972(Top 374%)
20M20.00 mi1.36 mi9308+1251639+241639+248131(Top 31%)1452(Top 13%)1452(Top 276%)
21M21.00 mi1.00 mi9225+831624+151624+158547(Top 32%)1735(Top 15%)1735(Top 329%)
35K21.75 mi0.75 mi9190+35162416248947(Top 34%)1884(Top 16%)1884(Top 357%)
23M23.00 mi1.25 mi9173+171645-211645-219136(Top 34%)2099(Top 18%)2099(Top 398%)
24M24.00 mi1.00 mi9071+1021621+241621+247508(Top 28%)1491(Top 13%)1491(Top 283%)
40K24.85 mi0.85 mi8947+1241591+301591+306676(Top 25%)1242(Top 11%)1242(Top 236%)
25.2M25.20 mi0.35 mi8908+391585+61585+67291(Top 27%)1535(Top 13%)1535(Top 291%)
Finish26.22 mi1.02 mi8810+981567+181567+187221(Top 27%)1514(Top 13%)1514(Top 287%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9196

Females

1518

F60-64

1518

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9235

Females

1508

F60-64

1508

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9196

Females

1518

F60-64

1518

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9026

Females

1500

F60-64

1500

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

9863

Females

1818

F60-64

1818

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

9876

Females

1945

F60-64

1945

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

9607

Females

1972

F60-64

1972

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8131

Females

1452

F60-64

1452

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

8547

Females

1735

F60-64

1735

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

8947

Females

1884

F60-64

1884

35K→23M

21.8 - 23.0 mi

Top 34%
×5stories
+23ft-63ft

Overall

9136

Females

2099

F60-64

2099

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

7508

Females

1491

F60-64

1491

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6676

Females

1242

F60-64

1242

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7291

Females

1535

F60-64

1535

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7221

Females

1514

F60-64

1514

Passing Analysis

Category:
Athletes Passed
2330*
Passed By
833
Net Change
+1497
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10307
5K → 10K716*96+620#10307#9687
10K → 15K27674+202#9687#9485
15K → 20K21176+135#9485#9350
20K → Half1931-12#9350#9362
Half → 25K103161-58#9362#9420
25K → 30K170*183-13#9420#9433
30K → 20M14722+125#9433#9308
20M → 21M12542+83#9308#9225
21M → 35K5722+35#9225#9190
35K → 23M9578+17#9190#9173
23M → 24M11715+102#9173#9071
24M → 40K1306+124#9071#8947
40K → 25.2M478+39#8947#8908
25.2M → Finish11719+98#8908#8810
TOTALS2330*833+1497

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing