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BOSTON MARATHON 2023

Terri Silver

Bib: 22415•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
8:39/mi
26:54
↑ 97↓ 3451.5%
10K· 6.21 mi
8:44/mi
54:02
↑ 79↓ 1380.4%
15K· 9.32 mi
8:53/mi
1:21:38
↑ 67↓ 78
20K· 12.43 mi
9:12/mi
1:50:13
↑ 106↓ 860.1%
Half· 13.11 mi
9:13/mi
1:56:30
↑ 19↓ 370.5%
25K· 15.53 mi
9:53/mi
2:20:27
↑ 66↓ 880.2%
30K· 18.64 mi
11:08/mi
2:55:02
↑ 181↓ 1480.2%
20M
11:05/mi
3:10:06
↑ 64↓ 500.2%
21M
11:47/mi
3:21:53
↑ 106↓ 241.6%
35K· 21.75 mi
10:03/mi
3:29:24
↑ 17↓ 861.7%
23M
11:44/mi
3:44:06
↑ 23↓ 630.6%
24M
10:22/mi
3:54:28
↓ 821.3%
40K· 24.85 mi
11:18/mi
4:04:08
↓ 200.3%
25.2M
13:32/mi
4:08:48
↑ 13↓ 160.2%
Finish· 26.22 mi
9:59/mi
4:18:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:30
Pace8:53 /mi
2nd Half
Distance13.11 mi
Time2:22:28
Pace10:52 /mi
📊Positive Split: 22.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:1926:548:3926:54
8:39
-
10K
6.21 mi11:48:2754:028:4227:08
8:44
+0:05
15K
9.32 mi12:16:031:21:388:4627:36
8:53
+0:09
20K
12.43 mi12:44:381:50:138:5228:35
9:12
+0:19
Half
13.11 mi12:50:551:56:308:536:17
9:13
+0:01
25K
15.53 mi13:14:522:20:279:0223:57
9:53
+0:40
30K
18.64 mi13:49:272:55:029:2334:35
11:08
+1:15
20M
20.00 mi14:04:313:10:069:3015:04
11:05
-0:03
21M
21.00 mi14:16:183:21:539:3711:47
11:47
+0:42
35K
21.75 mi14:23:493:29:249:387:31
10:03
-1:44
23M
23.00 mi14:38:313:44:069:4514:42
11:44
+1:41
24M
24.00 mi14:48:533:54:289:4610:22
10:22
-1:22
40K
24.85 mi14:58:334:04:089:499:40
11:18
+0:56
25.2M
25.20 mi15:03:134:08:489:524:40
13:32
+2:14
Finish
26.22 mi15:13:234:18:589:5310:10
9:59
-3:33

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

8:39 /mi

Average Pace

9:53 /mi

Slowest Pace

13:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:30

45% of race

Time at Steady Pace

52:00

20% of race

Time at Slower Pace

1:30:28

35% of race

Average Pace: 9:53 /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 mi11:21:1926:548:3926:54
8:39
#18644
10K
6.21 mi11:48:2754:028:4227:08
8:44
#19088
15K
9.32 mi12:16:031:21:388:4627:36
8:53
#19390
20K
12.43 mi12:44:381:50:138:5228:35
9:12
#19700
Half
13.11 mi12:50:551:56:308:536:17
9:13
#19796
25K
15.53 mi13:14:522:20:279:0223:57
9:53
#20328
30K
18.64 mi13:49:272:55:029:2334:35
11:08
#21157
20M
20.00 mi14:04:313:10:069:3015:04
11:05
#21296
21M
21.00 mi14:16:183:21:539:3711:47
11:47
#21386
35K
21.75 mi14:23:493:29:249:387:31
10:03
#21389
23M
23.00 mi14:38:313:44:069:4514:42
11:44
#21582
24M
24.00 mi14:48:533:54:289:4610:22
10:22
#21589
40K
24.85 mi14:58:334:04:089:499:40
11:18
#21673
25.2M
25.20 mi15:03:134:08:489:524:40
13:32
#21727
Finish
26.22 mi15:13:234:18:589:5310:10
9:59
#21731
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi186446967696719967(Top 75%)7670(Top 67%)7670(Top 422%)
10K6.21 mi3.10 mi19088-4447207-2407207-24019613(Top 74%)7460(Top 65%)7460(Top 411%)
15K9.32 mi3.11 mi19390-3027384-1777384-17719967(Top 75%)7670(Top 67%)7670(Top 422%)
20K12.43 mi3.11 mi19700-3107545-1617545-16120586(Top 77%)8001(Top 70%)8001(Top 440%)
Half13.11 mi0.68 mi19796-967596-517596-5121233(Top 80%)8381(Top 73%)8381(Top 461%)
25K15.53 mi2.42 mi20328-5327891-2957891-29521928(Top 82%)8797(Top 77%)8797(Top 484%)
30K18.64 mi3.11 mi21157-8298368-4778368-47723306(Top 88%)9631(Top 84%)9631(Top 530%)
20M20.00 mi1.36 mi21296-1398464-968464-9622859(Top 86%)9435(Top 83%)9435(Top 519%)
21M21.00 mi1.00 mi21386-908518-548518-5422396(Top 84%)9221(Top 81%)9221(Top 507%)
35K21.75 mi0.75 mi21389-38526-88526-821424(Top 80%)8728(Top 76%)8728(Top 480%)
23M23.00 mi1.25 mi21582-1938649-1238649-12323635(Top 89%)9921(Top 87%)9921(Top 546%)
24M24.00 mi1.00 mi21589-78666-178666-1721714(Top 82%)8955(Top 78%)8955(Top 493%)
40K24.85 mi0.85 mi21673-848721-558721-5522910(Top 86%)9614(Top 84%)9614(Top 529%)
25.2M25.20 mi0.35 mi21727-548757-368757-3624560(Top 92%)10460(Top 92%)10460(Top 576%)
Finish26.22 mi1.02 mi21731-48756+18756+121704(Top 82%)8959(Top 78%)8959(Top 493%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

19967

Females

7670

F45-49

7670

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19613

Females

7460

F45-49

7460

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

19967

Females

7670

F45-49

7670

15K→20K

9.3 - 12.4 mi

Top 77%
×5story building
+106ft-86ft

Overall

20586

Females

8001

F45-49

8001

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

21233

Females

8381

F45-49

8381

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

21928

Females

8797

F45-49

8797

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

23306

Females

9631

F45-49

9631

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

22859

Females

9435

F45-49

9435

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

22396

Females

9221

F45-49

9221

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

21424

Females

8728

F45-49

8728

35K→23M

21.8 - 23.0 mi

Top 89%
×5story building
+23ft-63ft

Overall

23635

Females

9921

F45-49

9921

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

21714

Females

8955

F45-49

8955

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22910

Females

9614

F45-49

9614

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24560

Females

10460

F45-49

10460

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

21704

Females

8959

F45-49

8959

Passing Analysis

Category:
Athletes Passed
613
Passed By
3700
Net Change
-3087
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18644
5K → 10K170614-444#18644#19088
10K → 15K81383-302#19088#19390
15K → 20K79389-310#19390#19700
20K → Half11107-96#19700#19796
Half → 25K27559-532#19796#20328
25K → 30K21850-829#20328#21157
30K → 20M34173-139#21157#21296
20M → 21M38128-90#21296#21386
21M → 35K3538-3#21386#21389
35K → 23M25218-193#21389#21582
23M → 24M3946-7#21582#21589
24M → 40K18102-84#21589#21673
40K → 25.2M761-54#21673#21727
25.2M → Finish2832-4#21727#21731
TOTALS6133700-3087
📊

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