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BOSTON MARATHON 2023

Jane Foster

Bib: 21227•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 42%
Masters (Masters Women)
#0 / 6539
Top 30%
Division (F55-59)
#0 / 815
Top 11%
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
8:17/mi
25:44
↑ 97↓ 3451.5%
10K· 6.21 mi
8:05/mi
50:51
↑ 79↓ 1380.4%
15K· 9.32 mi
8:02/mi
1:15:48
↑ 67↓ 78
20K· 12.43 mi
8:09/mi
1:41:07
↑ 106↓ 860.1%
Half· 13.11 mi
7:58/mi
1:46:33
↑ 19↓ 370.5%
25K· 15.53 mi
8:21/mi
2:06:47
↑ 66↓ 880.2%
30K· 18.64 mi
8:37/mi
2:33:34
↑ 181↓ 1480.2%
20M
8:48/mi
2:45:31
↑ 64↓ 500.2%
21M
9:19/mi
2:54:50
↑ 106↓ 241.6%
35K· 21.75 mi
8:36/mi
3:01:16
↑ 17↓ 861.7%
23M
8:42/mi
3:12:10
↑ 23↓ 630.6%
24M
8:38/mi
3:20:48
↓ 821.3%
40K· 24.85 mi
8:39/mi
3:28:12
↓ 200.3%
25.2M
9:11/mi
3:31:22
↑ 13↓ 160.2%
Finish· 26.22 mi
8:17/mi
3:39:48
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:33
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time1:53:15
Pace8:38 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:3225:448:1725:44
8:17
-
10K
6.21 mi11:44:3950:518:1125:07
8:05
-0:12
15K
9.32 mi12:09:361:15:488:0824:57
8:02
-0:03
20K
12.43 mi12:34:551:41:078:0825:19
8:09
+0:07
Half
13.11 mi12:40:211:46:338:085:26
7:58
-0:11
25K
15.53 mi13:00:352:06:478:1020:14
8:21
+0:23
30K
18.64 mi13:27:222:33:348:1426:47
8:37
+0:16
20M
20.00 mi13:39:192:45:318:1711:57
8:48
+0:11
21M
21.00 mi13:48:382:54:508:209:19
9:19
+0:31
35K
21.75 mi13:55:043:01:168:206:26
8:36
-0:43
23M
23.00 mi14:05:583:12:108:2110:54
8:42
+0:06
24M
24.00 mi14:14:363:20:488:228:38
8:38
-0:04
40K
24.85 mi14:22:003:28:128:237:24
8:39
+0:01
25.2M
25.20 mi14:25:103:31:228:233:10
9:11
+0:32
Finish
26.22 mi14:33:363:39:488:238:26
8:17
-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

7:58 /mi

Average Pace

8:23 /mi

Slowest Pace

9:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:22

89% of race

Time at Steady Pace

24:26

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:23 /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 mi11:19:3225:448:1725:44
8:17
#16031
10K
6.21 mi11:44:3950:518:1125:07
8:05
#15709
15K
9.32 mi12:09:361:15:488:0824:57
8:02
#15367
20K
12.43 mi12:34:551:41:078:0825:19
8:09
#15150
Half
13.11 mi12:40:211:46:338:085:26
7:58
#15076
25K
15.53 mi13:00:352:06:478:1020:14
8:21
#15080
30K
18.64 mi13:27:222:33:348:1426:47
8:37
#15067
20M
20.00 mi13:39:192:45:318:1711:57
8:48
#15071
21M
21.00 mi13:48:382:54:508:209:19
9:19
#15061
35K
21.75 mi13:55:043:01:168:206:26
8:36
#15080
23M
23.00 mi14:05:583:12:108:2110:54
8:42
#15021
24M
24.00 mi14:14:363:20:488:228:38
8:38
#15015
40K
24.85 mi14:22:003:28:128:237:24
8:39
#14955
25.2M
25.20 mi14:25:103:31:228:233:10
9:11
#14920
Finish
26.22 mi14:33:363:39:488:238:26
8:17
#14896
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi160315304530414657(Top 55%)4481(Top 39%)4481(Top 550%)
10K6.21 mi3.10 mi15709+3225098+2065098+20615417(Top 58%)4918(Top 43%)4918(Top 603%)
15K9.32 mi3.11 mi15367+3424894+2044894+20414657(Top 55%)4481(Top 39%)4481(Top 550%)
20K12.43 mi3.11 mi15150+2174778+1164778+11614600(Top 55%)4464(Top 39%)4464(Top 548%)
Half13.11 mi0.68 mi15076+744734+444734+4414163(Top 53%)4194(Top 37%)4194(Top 515%)
25K15.53 mi2.42 mi15080-44759-254759-2515232(Top 57%)4976(Top 44%)4976(Top 611%)
30K18.64 mi3.11 mi15067+134799-404799-4015043(Top 57%)4954(Top 43%)4954(Top 608%)
20M20.00 mi1.36 mi15071-44819-204819-2015404(Top 58%)5214(Top 46%)5214(Top 640%)
21M21.00 mi1.00 mi15061+104837-184837-1815091(Top 57%)5108(Top 45%)5108(Top 627%)
35K21.75 mi0.75 mi15080-194867-304867-3015869(Top 60%)5604(Top 49%)5604(Top 688%)
23M23.00 mi1.25 mi15021+594852+154852+1514434(Top 54%)4871(Top 43%)4871(Top 598%)
24M24.00 mi1.00 mi15015+64865-134865-1315276(Top 57%)5388(Top 47%)5388(Top 661%)
40K24.85 mi0.85 mi14955+604849+164849+1614290(Top 54%)4905(Top 43%)4905(Top 602%)
25.2M25.20 mi0.35 mi14920+354839+104839+1013617(Top 51%)4554(Top 40%)4554(Top 559%)
Finish26.22 mi1.02 mi14896+244848-94848-913973(Top 52%)4724(Top 41%)4724(Top 580%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

14657

Females

4481

F55-59

4481

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

15417

Females

4918

F55-59

4918

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

14657

Females

4481

F55-59

4481

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14600

Females

4464

F55-59

4464

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

14163

Females

4194

F55-59

4194

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15232

Females

4976

F55-59

4976

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15043

Females

4954

F55-59

4954

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

15404

Females

5214

F55-59

5214

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

15091

Females

5108

F55-59

5108

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

15869

Females

5604

F55-59

5604

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14434

Females

4871

F55-59

4871

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

15276

Females

5388

F55-59

5388

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14290

Females

4905

F55-59

4905

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

13617

Females

4554

F55-59

4554

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

13973

Females

4724

F55-59

4724

Passing Analysis

Category:
Athletes Passed
2190
Passed By
1055
Net Change
+1135
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16031
5K → 10K491169+322#16031#15709
10K → 15K40361+342#15709#15367
15K → 20K28770+217#15367#15150
20K → Half8713+74#15150#15076
Half → 25K135139-4#15076#15080
25K → 30K186173+13#15080#15067
30K → 20M8589-4#15067#15071
20M → 21M9383+10#15071#15061
21M → 35K4059-19#15061#15080
35K → 23M10445+59#15080#15021
23M → 24M5953+6#15021#15015
24M → 40K9434+60#15015#14955
40K → 25.2M4611+35#14955#14920
25.2M → Finish8056+24#14920#14896
TOTALS21901055+1135
📊

Passing Visuals

Category:
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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