Capital Road Race Management
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BOSTON MARATHON 2025

Amber Thielbar

WY

Bib: 177 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 10%
Gender (Female)
#0 / 12228
Top 1%
Masters (Masters Women)
#0 / 6759
Top 0.2%
Division (F40-44)
#0 / 1718
Top 0.6%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:09/mi
19:06
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:20/mi
38:48
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:26/mi
58:46
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:31/mi
1:19:02
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:27/mi
1:23:26
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:31/mi
1:39:15
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:49/mi
2:00:27
↑ 181↓ 1480.2%
138 ft elev
20M
7:04/mi
2:10:03
↑ 64↓ 500.2%
148 ft elev
21M
7:23/mi
2:17:26
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:49/mi
2:22:32
↑ 17↓ 861.7%
156 ft elev
23M
6:47/mi
2:31:02
↑ 23↓ 630.6%
116 ft elev
24M
6:49/mi
2:37:51
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:49/mi
2:43:40
↓ 200.3%
20 ft elev
25.2M
6:54/mi
2:46:03
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:54/mi
2:53:05
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:23:266:22 /mi⚡ faster
2nd Half
1:29:396:50 /mi+7.5%
Positive split — 7.5% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
19:066:093.11 mi19:06
6:09
-
10K
38:486:153.10 mi19:42
6:20
+0:11
15K
58:466:183.11 mi19:58
6:26
+0:06
20K
1:19:026:223.11 mi20:16
6:31
+0:05
Half(13.11 mi)
1:23:266:220.68 mi4:24
6:27
-0:04
25K
1:39:156:232.42 mi15:49
6:31
+0:04
30K
2:00:276:283.11 mi21:12
6:49
+0:18
20M
2:10:036:301.36 mi9:36
7:04
+0:15
21M
2:17:266:331.00 mi7:23
7:23
+0:19
35K
2:22:326:330.75 mi5:06
6:49
-0:34
23M
2:31:026:341.25 mi8:30
6:47
-0:02
24M
2:37:516:351.00 mi6:49
6:49
+0:02
40K
2:43:406:350.85 mi5:49
6:49
0:00
25.2M
2:46:036:350.35 mi2:23
6:54
+0:05
Finish(26.22 mi)
2:53:056:361.02 mi7:02
6:54
0:00
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

6:09 /mi

Average Pace

6:36 /mi

Slowest Pace

7:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:39:15

57% of race

Time at Steady Pace

56:51

33% of race

Time at Slower Pace

16:59

10% of race

Average Pace: 6:36 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi161676763120143143
10K3.10 mi2110-49491-1591-152693121121
15K3.11 mi2417-307103-12103-123120143143
20K3.11 mi2608-191113-10113-103271165165
Half(13.11 mi)0.68 mi2644-36115-2115-23434169169
25K2.42 mi2678-34116-1116-13030146146
30K3.11 mi2799-121125-9125-93603252252
20M1.36 mi2887-88133-8133-84496390390
21M1.00 mi2927-40141-8141-84052367367
35K0.75 mi2922+5147-6147-64254435435
23M1.25 mi2868+54142+5142+52671202202
24M1.00 mi2861+7146-4146-43562370370
40K0.85 mi2838+23145+1145+12908280280
25.2M0.35 mi2780+58140+5140+511869191
Finish(26.22 mi)1.02 mi2829-49145-5145-55159932932

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21story building
+97ft-345ft

Overall

3120

Females

143

F40-44

143

5K→10K

3.1 - 6.2 mi

Top 9%
×5story building
+79ft-138ft

Overall

2693

Females

121

F40-44

121

10K→15K

6.2 - 9.3 mi

Top 11%
×3story building
+67ft-78ft

Overall

3120

Females

143

F40-44

143

15K→20K

9.3 - 12.4 mi

Top 12%
×5story building
+106ft-86ft

Overall

3271

Females

165

F40-44

165

20K→Half

12.4 - 13.1 mi

Top 12%
×2story building
+19ft-37ft

Overall

3434

Females

169

F40-44

169

Half→25K

13.1 - 15.5 mi

Top 11%
×4story building
+66ft-88ft

Overall

3030

Females

146

F40-44

146

25K→30K

15.5 - 18.6 mi

Top 13%
×9story building
+181ft-148ft

Overall

3603

Females

252

F40-44

252

30K→20M

18.6 - 20.0 mi

Top 16%
×5story building
+64ft-50ft

Overall

4496

Females

390

F40-44

390

20M→21M

20.0 - 21.0 mi

Top 14%
×8story building
+106ft-24ft

Overall

4052

Females

367

F40-44

367

21M→35K

21.0 - 21.8 mi

Top 15%
×7story building
+17ft-86ft

Overall

4254

Females

435

F40-44

435

35K→23M

21.8 - 23.0 mi

Top 9%
×5story building
+23ft-63ft

Overall

2671

Females

202

F40-44

202

23M→24M

23.0 - 24.0 mi

Top 13%
×6story building
+12ft-82ft

Overall

3562

Females

370

F40-44

370

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2908

Females

280

F40-44

280

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1186

Females

91

F40-44

91

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2story building
+22ft-21ft

Overall

5159

Females

932

F40-44

932

Passing Analysis

Category:
Passed
531
Passed By
1744
Net Change
-1213
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1616
5K → 10K7501-494#1616#2110
10K → 15K15322-307#2110#2417
15K → 20K30221-191#2417#2608
20K → Half440-36#2608#2644
Half → 25K5286-34#2644#2678
25K → 30K69190-121#2678#2799
30K → 20M32120-88#2799#2887
20M → 21M3373-40#2887#2927
21M → 35K3429+5#2927#2922
35K → 23M8228+54#2922#2868
23M → 24M4437+7#2868#2861
24M → 40K4825+23#2861#2838
40K → 25.2M580+58#2838#2780
25.2M → Finish2372-49#2780#2829
TOTALS5311744-1213

Passing Charts

Category:
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Passing Circle

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Position Flow

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Race Lanes

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