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BOSTON MARATHON 2023

Amy Silverbush

Bib: 14408•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 48%
Gender (Female)
#0 / 11423
Top 32%
Division (F18-39)
#0 / 4884
Top 50%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:00
Rank: #11704
Start → 5K
24:00 | 7:43/mi
10K· 6.21 mi
47:55
Rank: #11935 (-231)
5K → 10K
23:55 | 7:42/mi
15K· 9.32 mi
1:11:55
Rank: #11932 (+3)
10K → 15K
24:00 | 7:43/mi
20K· 12.43 mi
1:36:14
Rank: #11909 (+23)
15K → 20K
24:19 | 7:50/mi
Half· 13.11 mi
1:41:32
Rank: #11950 (-41)
20K → Half
5:18 | 7:46/mi
25K· 15.53 mi
2:00:40
Rank: #11893 (+57)
Half → 25K
19:08 | 7:53/mi
30K· 18.64 mi
2:26:32
Rank: #12131 (-238)
25K → 30K
25:52 | 8:20/mi
20M
2:38:14
Rank: #12315 (-184)
30K → 20M
11:42 | 8:37/mi
21M
2:47:23
Rank: #12420 (-105)
20M → 21M
9:09 | 9:09/mi
35K· 21.75 mi
2:53:32
Rank: #12464 (-44)
21M → 35K
6:09 | 8:13/mi
23M
3:04:30
Rank: #12605 (-141)
35K → 23M
10:58 | 8:46/mi
24M
3:13:10
Rank: #12755 (-150)
23M → 24M
8:40 | 8:40/mi
40K· 24.85 mi
3:20:35
Rank: #12820 (-65)
24M → 40K
7:25 | 8:40/mi
25.2M
3:23:43
Rank: #12813 (+7)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:32:18
Rank: #12883 (-70)
25.2M → Finish
8:35 | 8:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:32
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:50:46
Pace8:27 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2124:007:4324:00
7:43
-
10K
6.21 mi11:17:1647:557:4323:55
7:42
-0:01
15K
9.32 mi11:41:161:11:557:4324:00
7:43
+0:01
20K
12.43 mi12:05:351:36:147:4524:19
7:50
+0:07
Half
13.11 mi12:10:531:41:327:455:18
7:46
-0:04
25K
15.53 mi12:30:012:00:407:4619:08
7:53
+0:07
30K
18.64 mi12:55:532:26:327:5225:52
8:20
+0:27
20M
20.00 mi13:07:352:38:147:5511:42
8:37
+0:17
21M
21.00 mi13:16:442:47:237:589:09
9:09
+0:32
35K
21.75 mi13:22:532:53:327:596:09
8:13
-0:56
23M
23.00 mi13:33:513:04:308:0110:58
8:46
+0:33
24M
24.00 mi13:42:313:13:108:038:40
8:40
-0:06
40K
24.85 mi13:49:563:20:358:047:25
8:40
0:00
25.2M
25.20 mi13:53:043:23:438:053:08
9:05
+0:25
Finish
26.22 mi14:01:393:32:188:068:35
8:25
-0:40

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

7:42 /mi

Average Pace

8:06 /mi

Slowest Pace

9:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:16

76% of race

Time at Steady Pace

41:53

20% of race

Time at Slower Pace

9:09

4% of race

Average Pace: 8:06 /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 mi10:53:2124:007:4324:00
7:43
#11704
10K
6.21 mi11:17:1647:557:4323:55
7:42
#11935
15K
9.32 mi11:41:161:11:557:4324:00
7:43
#11932
20K
12.43 mi12:05:351:36:147:4524:19
7:50
#11909
Half
13.11 mi12:10:531:41:327:455:18
7:46
#11950
25K
15.53 mi12:30:012:00:407:4619:08
7:53
#11893
30K
18.64 mi12:55:532:26:327:5225:52
8:20
#12131
20M
20.00 mi13:07:352:38:147:5511:42
8:37
#12315
21M
21.00 mi13:16:442:47:237:589:09
9:09
#12420
35K
21.75 mi13:22:532:53:327:596:09
8:13
#12464
23M
23.00 mi13:33:513:04:308:0110:58
8:46
#12605
24M
24.00 mi13:42:313:13:108:038:40
8:40
#12755
40K
24.85 mi13:49:563:20:358:047:25
8:40
#12820
25.2M
25.20 mi13:53:043:23:438:053:08
9:05
#12813
Finish
26.22 mi14:01:393:32:188:068:35
8:25
#12883
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi117042702270212079(Top 45%)2947(Top 26%)2947(Top 60%)
10K6.21 mi3.10 mi11935-2312841-1392841-13912246(Top 46%)3014(Top 26%)3014(Top 62%)
15K9.32 mi3.11 mi11932+32853-122853-1212079(Top 45%)2947(Top 26%)2947(Top 60%)
20K12.43 mi3.11 mi11909+232865-122865-1211986(Top 45%)2969(Top 26%)2969(Top 61%)
Half13.11 mi0.68 mi11950-412887-222887-2212555(Top 47%)3256(Top 29%)3256(Top 67%)
25K15.53 mi2.42 mi11893+572874+132874+1311882(Top 45%)3014(Top 26%)3014(Top 62%)
30K18.64 mi3.11 mi12131-2383050-1763050-17613195(Top 50%)3871(Top 34%)3871(Top 79%)
20M20.00 mi1.36 mi12315-1843168-1183168-11814356(Top 54%)4634(Top 41%)4634(Top 95%)
21M21.00 mi1.00 mi12420-1053246-783246-7814269(Top 54%)4646(Top 41%)4646(Top 95%)
35K21.75 mi0.75 mi12464-443294-483294-4813672(Top 51%)4405(Top 39%)4405(Top 90%)
23M23.00 mi1.25 mi12605-1413392-983392-9814801(Top 56%)5074(Top 44%)5074(Top 104%)
24M24.00 mi1.00 mi12755-1503505-1133505-11315513(Top 58%)5553(Top 49%)5553(Top 114%)
40K24.85 mi0.85 mi12820-653564-593564-5914427(Top 54%)4996(Top 44%)4996(Top 102%)
25.2M25.20 mi0.35 mi12813+73566-23566-213143(Top 49%)4338(Top 38%)4338(Top 89%)
Finish26.22 mi1.02 mi12883-703631-653631-6514941(Top 56%)5240(Top 46%)5240(Top 107%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21stories
+97ft-345ft

Overall

12079

Females

2947

F18-39

2947

5K→10K

3.1 - 6.2 mi

Top 46%
×5stories
+79ft-138ft

Overall

12246

Females

3014

F18-39

3014

10K→15K

6.2 - 9.3 mi

Top 45%
×3stories
+67ft-78ft

Overall

12079

Females

2947

F18-39

2947

15K→20K

9.3 - 12.4 mi

Top 45%
×5stories
+106ft-86ft

Overall

11986

Females

2969

F18-39

2969

20K→Half

12.4 - 13.1 mi

Top 47%
×2stories
+19ft-37ft

Overall

12555

Females

3256

F18-39

3256

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

11882

Females

3014

F18-39

3014

25K→30K

15.5 - 18.6 mi

Top 50%
×9stories
+181ft-148ft

Overall

13195

Females

3871

F18-39

3871

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

14356

Females

4634

F18-39

4634

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

14269

Females

4646

F18-39

4646

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

13672

Females

4405

F18-39

4405

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

14801

Females

5074

F18-39

5074

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

15513

Females

5553

F18-39

5553

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14427

Females

4996

F18-39

4996

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13143

Females

4338

F18-39

4338

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

14941

Females

5240

F18-39

5240

Passing Analysis

Category:
Athletes Passed
1217
Passed By
2396
Net Change
-1179
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11704
5K → 10K204435-231#11704#11935
10K → 15K195192+3#11935#11932
15K → 20K176153+23#11932#11909
20K → Half1253-41#11909#11950
Half → 25K163106+57#11950#11893
25K → 30K125363-238#11893#12131
30K → 20M51235-184#12131#12315
20M → 21M62167-105#12315#12420
21M → 35K3983-44#12420#12464
35K → 23M44185-141#12464#12605
23M → 24M34184-150#12605#12755
24M → 40K42107-65#12755#12820
40K → 25.2M3124+7#12820#12813
25.2M → Finish39109-70#12813#12883
TOTALS12172396-1179
📊

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