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BOSTON MARATHON 2026

Amber Deardorff

Bib: 23144•F

IA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F45-49)
#0 / 1786
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
26:06
3.11 mi
Rank: #19523
Start → 5K
26:06 | 8:25/mi
10K
52:34
6.21 mi
Rank: #19948 (-425)
5K → 10K
26:28 | 8:32/mi
15K
1:18:37
9.32 mi
Rank: #19765 (+183)
10K → 15K
26:03 | 8:24/mi
20K
1:45:20
12.43 mi
Rank: #19783 (-18)
15K → 20K
26:43 | 8:36/mi
HALF
1:51:02
13.11 mi
Rank: #19760 (+23)
20K → HALF
5:42 | 8:22/mi
25K
2:12:21
15.53 mi
Rank: #19850 (-90)
HALF → 25K
21:19 | 8:48/mi
30K
2:40:10
18.64 mi
Rank: #19743 (+107)
25K → 30K
27:49 | 8:58/mi
20M
2:52:44
20.00 mi
Rank: #19766 (-23)
30K → 20M
12:34 | 9:16/mi
21M
3:02:45
21.00 mi
Rank: #19829 (-63)
20M → 21M
10:01 | 10:01/mi
35K
3:09:11
21.75 mi
Rank: #19765 (+64)
21M → 35K
6:26 | 8:36/mi
23M
3:21:09
23.00 mi
Rank: #19851 (-86)
35K → 23M
11:58 | 9:34/mi
24M
3:30:22
24.00 mi
Rank: #19875 (-24)
23M → 24M
9:13 | 9:13/mi
40K
3:38:40
24.85 mi
Rank: #19957 (-82)
24M → 40K
8:18 | 9:43/mi
25.2M
3:42:10
25.20 mi
Rank: #19965 (-8)
40K → 25.2M
3:30 | 10:09/mi
FINISH
3:51:29
26.22 mi
Rank: #20020 (-55)
25.2M → FINISH
9:19 | 9:09/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:51:02
Pace8:29 /mi
2nd Half
Distance13.11 mi
Time2:00:27
Pace9:12 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:4026:068:2526:06
8:25
-
10K
6.21 mi11:55:0852:348:2826:28
8:32
+0:07
15K
9.32 mi12:21:111:18:378:2726:03
8:24
-0:08
20K
12.43 mi12:47:541:45:208:2926:43
8:36
+0:12
HALF
13.11 mi12:53:361:51:028:295:42
8:22
-0:14
25K
15.53 mi13:14:552:12:218:3221:19
8:48
+0:26
30K
18.64 mi13:42:442:40:108:3627:49
8:58
+0:10
20M
20.00 mi13:55:182:52:448:3912:34
9:16
+0:18
21M
21.00 mi14:05:193:02:458:4310:01
10:01
+0:45
35K
21.75 mi14:11:453:09:118:426:26
8:36
-1:25
23M
23.00 mi14:23:433:21:098:4511:58
9:34
+0:58
24M
24.00 mi14:32:563:30:228:469:13
9:13
-0:21
40K
24.85 mi14:41:143:38:408:488:18
9:43
+0:30
25.2M
25.20 mi14:44:443:42:108:493:30
10:09
+0:26
FINISH
26.22 mi14:54:033:51:298:519:19
9:09
-1:00

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

8:22 /mi

Average Pace

8:50 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:57:28

51% of race

Time at Steady Pace

1:07:40

29% of race

Time at Slower Pace

46:21

20% of race

Average Pace: 8:50 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:28:4026:068:2526:06
8:25
#19523
10K
6.21 mi11:55:0852:348:2826:28
8:32
#19948
15K
9.32 mi12:21:111:18:378:2726:03
8:24
#19765
20K
12.43 mi12:47:541:45:208:2926:43
8:36
#19783
HALF
13.11 mi12:53:361:51:028:295:42
8:22
#19760
25K
15.53 mi13:14:552:12:218:3221:19
8:48
#19850
30K
18.64 mi13:42:442:40:108:3627:49
8:58
#19743
20M
20.00 mi13:55:182:52:448:3912:34
9:16
#19766
21M
21.00 mi14:05:193:02:458:4310:01
10:01
#19829
35K
21.75 mi14:11:453:09:118:426:26
8:36
#19765
23M
23.00 mi14:23:433:21:098:4511:58
9:34
#19851
24M
24.00 mi14:32:563:30:228:469:13
9:13
#19875
40K
24.85 mi14:41:143:38:408:488:18
9:43
#19957
25.2M
25.20 mi14:44:443:42:108:493:30
10:09
#19965
FINISH
26.22 mi14:54:033:51:298:519:19
9:09
#20020
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi195237380738019485(Top 67%)7307(Top 58%)7307(Top 409%)
10K6.21 mi3.10 mi19948-4257586-2067586-20620464(Top 71%)7838(Top 62%)7838(Top 439%)
15K9.32 mi3.11 mi19765+1837483+1037483+10319485(Top 67%)7307(Top 58%)7307(Top 409%)
20K12.43 mi3.11 mi19783-187503-207503-2019886(Top 69%)7563(Top 60%)7563(Top 423%)
HALF13.11 mi0.68 mi19760+237492+117492+1119484(Top 67%)7321(Top 58%)7321(Top 410%)
25K15.53 mi2.42 mi19850-907551-597551-5920191(Top 70%)7756(Top 62%)7756(Top 434%)
30K18.64 mi3.11 mi19743+1077516+357516+3519366(Top 67%)7415(Top 59%)7415(Top 415%)
20M20.00 mi1.36 mi19766-237556-407556-4020088(Top 69%)7854(Top 62%)7854(Top 440%)
21M21.00 mi1.00 mi19829-637600-447600-4420504(Top 71%)8108(Top 64%)8108(Top 454%)
35K21.75 mi0.75 mi19765+647572+287572+2818165(Top 63%)6993(Top 56%)6993(Top 392%)
23M23.00 mi1.25 mi19851-867635-637635-6320801(Top 72%)8361(Top 66%)8361(Top 468%)
24M24.00 mi1.00 mi19875-247672-377672-3720350(Top 70%)8223(Top 65%)8223(Top 460%)
40K24.85 mi0.85 mi19957-827725-537725-5321080(Top 73%)8612(Top 68%)8612(Top 482%)
25.2M25.20 mi0.35 mi19965-87736-117736-1119972(Top 69%)8054(Top 64%)8054(Top 451%)
FINISH26.22 mi1.02 mi20020-557780-447780-4421094(Top 73%)8622(Top 69%)8622(Top 483%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21
+97ft-345ft

Overall

19485

Females

7307

F45-49

7307

5K→10K

3.1 - 6.2 mi

Top 71%
×5
+79ft-138ft

Overall

20464

Females

7838

F45-49

7838

10K→15K

6.2 - 9.3 mi

Top 67%
×3
+67ft-78ft

Overall

19485

Females

7307

F45-49

7307

15K→20K

9.3 - 12.4 mi

Top 69%
×5
+106ft-86ft

Overall

19886

Females

7563

F45-49

7563

20K→HALF

12.4 - 13.1 mi

Top 67%
×2
+19ft-37ft

Overall

19484

Females

7321

F45-49

7321

HALF→25K

13.1 - 15.5 mi

Top 70%
×4
+66ft-88ft

Overall

20191

Females

7756

F45-49

7756

25K→30K

15.5 - 18.6 mi

Top 67%
×9
+181ft-148ft

Overall

19366

Females

7415

F45-49

7415

30K→20M

18.6 - 20.0 mi

Top 69%
×5
+64ft-50ft

Overall

20088

Females

7854

F45-49

7854

20M→21M

20.0 - 21.0 mi

Top 71%
×8
+106ft-24ft

Overall

20504

Females

8108

F45-49

8108

21M→35K

21.0 - 21.8 mi

Top 63%
×7
+17ft-86ft

Overall

18165

Females

6993

F45-49

6993

35K→23M

21.8 - 23.0 mi

Top 72%
×5
+23ft-63ft

Overall

20801

Females

8361

F45-49

8361

23M→24M

23.0 - 24.0 mi

Top 70%
×6
+12ft-82ft

Overall

20350

Females

8223

F45-49

8223

24M→40K

24.0 - 24.9 mi

Top 73%
×1
+6ft-20ft

Overall

21080

Females

8612

F45-49

8612

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1
+13ft-16ft

Overall

19972

Females

8054

F45-49

8054

25.2M→FINISH

25.2 - 26.2 mi

Top 73%
×2
+22ft-21ft

Overall

21094

Females

8622

F45-49

8622

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1337*
Passed By
1488
Net Change
-497
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19523
5K → 10K121200-425#19523#19948
10K → 15K267*84+183#19948#19765
15K → 20K149167-18#19765#19783
20K → HALF4219+23#19783#19760
HALF → 25K90180-90#19760#19850
25K → 30K226*119+107#19850#19743
30K → 20M82105-23#19743#19766
20M → 21M66129-63#19766#19829
21M → 35K8521+64#19829#19765
35K → 23M56142-86#19765#19851
23M → 24M6589-24#19851#19875
24M → 40K26108-82#19875#19957
40K → 25.2M2937-8#19957#19965
25.2M → FINISH3388-55#19965#20020
TOTALS1337*1488-497

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

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing