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BOSTON MARATHON 2023

Amanda Derby

Bib: 26952•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:09
Rank: #22673
Start → 5K
9:42/mi
30:09 split
10K· 6.21 mi
59:30
Rank: #22543 (+130)
5K → 10K
9:27/mi
29:21 split
15K· 9.32 mi
1:28:18
Rank: #22213 (+330)
10K → 15K
9:16/mi
28:48 split
20K· 12.43 mi
1:56:17
Rank: #21692 (+521)
15K → 20K
9:00/mi
27:59 split
Half· 13.11 mi
2:02:29
Rank: #21647 (+45)
20K → Half
9:05/mi
6:12 split
25K· 15.53 mi
2:25:17
Rank: #21461 (+186)
Half → 25K
9:24/mi
22:48 split
30K· 18.64 mi
2:55:20
Rank: #21192 (+269)
25K → 30K
9:40/mi
30:03 split
20M
3:08:08
Rank: #20980 (+212)
30K → 20M
9:25/mi
12:48 split
21M
3:18:13
Rank: #20823 (+157)
20M → 21M
10:05/mi
10:05 split
35K· 21.75 mi
3:25:16
Rank: #20760 (+63)
21M → 35K
9:25/mi
7:03 split
23M
3:37:28
Rank: #20651 (+109)
35K → 23M
9:45/mi
12:12 split
24M
3:47:01
Rank: #20591 (+60)
23M → 24M
9:33/mi
9:33 split
40K· 24.85 mi
3:55:26
Rank: #20550 (+41)
24M → 40K
9:51/mi
8:25 split
25.2M
3:59:11
Rank: #20538 (+12)
40K → 25.2M
10:52/mi
3:45 split
Finish· 26.22 mi
4:08:45
Rank: #20495 (+43)
25.2M → Finish
9:23/mi
9:34 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:29
Pace9:21 /mi
2nd Half
Distance13.11 mi
Time2:06:16
Pace9:38 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:3430:099:4230:09
9:42
-
10K
6.21 mi12:15:5559:309:3529:21
9:27
-0:15
15K
9.32 mi12:44:431:28:189:2828:48
9:16
-0:11
20K
12.43 mi13:12:421:56:179:2127:59
9:00
-0:16
Half
13.11 mi13:18:542:02:299:216:12
9:05
+0:05
25K
15.53 mi13:41:422:25:179:2122:48
9:24
+0:19
30K
18.64 mi14:11:452:55:209:2430:03
9:40
+0:16
20M
20.00 mi14:24:333:08:089:2412:48
9:25
-0:15
21M
21.00 mi14:34:383:18:139:2610:05
10:05
+0:40
35K
21.75 mi14:41:413:25:169:267:03
9:25
-0:40
23M
23.00 mi14:53:533:37:289:2712:12
9:45
+0:20
24M
24.00 mi15:03:263:47:019:289:33
9:33
-0:12
40K
24.85 mi15:11:513:55:269:288:25
9:51
+0:18
25.2M
25.20 mi15:15:363:59:119:293:45
10:52
+1:01
Finish
26.22 mi15:25:104:08:459:309:34
9:23
-1:29

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

9:00 /mi

Average Pace

9:30 /mi

Slowest Pace

10:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

34:11

14% of race

Time at Steady Pace

2:29:58

60% of race

Time at Slower Pace

1:04:36

26% of race

Average Pace: 9:29 /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 mi11:46:3430:099:4230:09
9:42
#22673
10K
6.21 mi12:15:5559:309:3529:21
9:27
#22543
15K
9.32 mi12:44:431:28:189:2828:48
9:16
#22213
20K
12.43 mi13:12:421:56:179:2127:59
9:00
#21692
Half
13.11 mi13:18:542:02:299:216:12
9:05
#21647
25K
15.53 mi13:41:422:25:179:2122:48
9:24
#21461
30K
18.64 mi14:11:452:55:209:2430:03
9:40
#21192
20M
20.00 mi14:24:333:08:089:2412:48
9:25
#20980
21M
21.00 mi14:34:383:18:139:2610:05
10:05
#20823
35K
21.75 mi14:41:413:25:169:267:03
9:25
#20760
23M
23.00 mi14:53:533:37:289:2712:12
9:45
#20651
24M
24.00 mi15:03:263:47:019:289:33
9:33
#20591
40K
24.85 mi15:11:513:55:269:288:25
9:51
#20550
25.2M
25.20 mi15:15:363:59:119:293:45
10:52
#20538
Finish
26.22 mi15:25:104:08:459:309:34
9:23
#20495
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi226739220922021548(Top 81%)8527(Top 75%)8527(Top 175%)
10K6.21 mi3.10 mi22543+1309119+1019119+10122354(Top 84%)9007(Top 79%)9007(Top 184%)
15K9.32 mi3.11 mi22213+3308941+1788941+17821548(Top 81%)8527(Top 75%)8527(Top 175%)
20K12.43 mi3.11 mi21692+5218656+2858656+28519745(Top 74%)7524(Top 66%)7524(Top 154%)
Half13.11 mi0.68 mi21647+458635+218635+2120816(Top 78%)8140(Top 71%)8140(Top 167%)
25K15.53 mi2.42 mi21461+1868525+1108525+11020537(Top 77%)8008(Top 70%)8008(Top 164%)
30K18.64 mi3.11 mi21192+2698389+1368389+13620046(Top 75%)7794(Top 68%)7794(Top 160%)
20M20.00 mi1.36 mi20980+2128284+1058284+10518564(Top 70%)7066(Top 62%)7066(Top 145%)
21M21.00 mi1.00 mi20823+1578206+788206+7818358(Top 69%)6977(Top 61%)6977(Top 143%)
35K21.75 mi0.75 mi20760+638187+198187+1919654(Top 74%)7739(Top 68%)7739(Top 158%)
23M23.00 mi1.25 mi20651+1098137+508137+5019249(Top 72%)7557(Top 66%)7557(Top 155%)
24M24.00 mi1.00 mi20591+608118+198118+1919410(Top 73%)7673(Top 67%)7673(Top 157%)
40K24.85 mi0.85 mi20550+418102+168102+1619542(Top 73%)7801(Top 68%)7801(Top 160%)
25.2M25.20 mi0.35 mi20538+128097+58097+520187(Top 76%)8156(Top 71%)8156(Top 167%)
Finish26.22 mi1.02 mi20495+438086+118086+1119731(Top 74%)7855(Top 69%)7855(Top 161%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

21548

Females

8527

F18-39

8527

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

22354

Females

9007

F18-39

9007

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

21548

Females

8527

F18-39

8527

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

19745

Females

7524

F18-39

7524

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

20816

Females

8140

F18-39

8140

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

20537

Females

8008

F18-39

8008

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

20046

Females

7794

F18-39

7794

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18564

Females

7066

F18-39

7066

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

18358

Females

6977

F18-39

6977

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

19654

Females

7739

F18-39

7739

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

19249

Females

7557

F18-39

7557

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

19410

Females

7673

F18-39

7673

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

19542

Females

7801

F18-39

7801

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

20187

Females

8156

F18-39

8156

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

19731

Females

7855

F18-39

7855

Passing Analysis

Category:
Athletes Passed
2581
Passed By
403
Net Change
+2178
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22673
5K → 10K310180+130#22673#22543
10K → 15K36535+330#22543#22213
15K → 20K5254+521#22213#21692
20K → Half505+45#21692#21647
Half → 25K21428+186#21647#21461
25K → 30K29829+269#21461#21192
30K → 20M2131+212#21192#20980
20M → 21M1647+157#20980#20823
21M → 35K7613+63#20823#20760
35K → 23M12718+109#20760#20651
23M → 24M7919+60#20651#20591
24M → 40K6423+41#20591#20550
40K → 25.2M3018+12#20550#20538
25.2M → Finish6623+43#20538#20495
TOTALS2581403+2178
📊

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