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BOSTON MARATHON 2025

Amanda Gross

Bib: 18803•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 40%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ 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
7:46/mi
24:09
↑ 97↓ 3451.5%
10K· 6.21 mi
7:48/mi
48:23
↑ 79↓ 1380.4%
15K· 9.32 mi
7:52/mi
1:12:48
↑ 67↓ 78
20K· 12.43 mi
7:55/mi
1:37:23
↑ 106↓ 860.1%
Half· 13.11 mi
8:04/mi
1:42:53
↑ 19↓ 370.5%
25K· 15.53 mi
8:05/mi
2:02:28
↑ 66↓ 880.2%
30K· 18.64 mi
8:31/mi
2:28:57
↑ 181↓ 1480.2%
20M
8:44/mi
2:40:49
↑ 64↓ 500.2%
21M
9:23/mi
2:50:12
↑ 106↓ 241.6%
35K· 21.75 mi
8:35/mi
2:56:37
↑ 17↓ 861.7%
23M
8:57/mi
3:07:49
↑ 23↓ 630.6%
24M
8:55/mi
3:16:44
↓ 821.3%
40K· 24.85 mi
9:09/mi
3:24:33
↓ 200.3%
25.2M
9:40/mi
3:27:53
↑ 13↓ 160.2%
Finish· 26.22 mi
8:29/mi
3:36:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:53
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time1:53:39
Pace8:40 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:4724:097:4624:09
7:46
-
10K
6.21 mi11:39:0148:237:4724:14
7:48
+0:02
15K
9.32 mi12:03:261:12:487:4924:25
7:52
+0:04
20K
12.43 mi12:28:011:37:237:5024:35
7:55
+0:03
Half
13.11 mi12:33:311:42:537:515:30
8:04
+0:09
25K
15.53 mi12:53:062:02:287:5319:35
8:05
+0:01
30K
18.64 mi13:19:352:28:577:5926:29
8:31
+0:26
20M
20.00 mi13:31:272:40:498:0211:52
8:44
+0:13
21M
21.00 mi13:40:502:50:128:069:23
9:23
+0:39
35K
21.75 mi13:47:152:56:378:076:25
8:35
-0:48
23M
23.00 mi13:58:273:07:498:1011:12
8:57
+0:22
24M
24.00 mi14:07:223:16:448:128:55
8:55
-0:02
40K
24.85 mi14:15:113:24:338:147:49
9:09
+0:14
25.2M
25.20 mi14:18:313:27:538:153:20
9:40
+0:31
Finish
26.22 mi14:27:103:36:328:168:39
8:29
-1:11

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

7:46 /mi

Average Pace

8:16 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:28

57% of race

Time at Steady Pace

53:25

25% of race

Time at Slower Pace

40:39

19% of race

Average Pace: 8:15 /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 mi11:14:4724:097:4624:09
7:46
#14545
10K
6.21 mi11:39:0148:237:4724:14
7:48
#14643
15K
9.32 mi12:03:261:12:487:4924:25
7:52
#14708
20K
12.43 mi12:28:011:37:237:5024:35
7:55
#14540
Half
13.11 mi12:33:311:42:537:515:30
8:04
#14650
25K
15.53 mi12:53:062:02:287:5319:35
8:05
#14573
30K
18.64 mi13:19:352:28:577:5926:29
8:31
#14627
20M
20.00 mi13:31:272:40:498:0211:52
8:44
#14669
21M
21.00 mi13:40:502:50:128:069:23
9:23
#14701
35K
21.75 mi13:47:152:56:378:076:25
8:35
#14721
23M
23.00 mi13:58:273:07:498:1011:12
8:57
#14775
24M
24.00 mi14:07:223:16:448:128:55
8:55
#14863
40K
24.85 mi14:15:113:24:338:147:49
9:09
#14951
25.2M
25.20 mi14:18:313:27:538:153:20
9:40
#14947
Finish
26.22 mi14:27:103:36:328:168:39
8:29
#14979
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi145454250425014869(Top 52%)4514(Top 37%)4514(Top 83%)
10K6.21 mi3.10 mi14643-984332-824332-8214773(Top 52%)4411(Top 36%)4411(Top 81%)
15K9.32 mi3.11 mi14708-654377-454377-4514869(Top 52%)4514(Top 37%)4514(Top 83%)
20K12.43 mi3.11 mi14540+1684314+634314+6314171(Top 50%)4188(Top 34%)4188(Top 77%)
Half13.11 mi0.68 mi14650-1104381-674381-6716285(Top 57%)5372(Top 44%)5372(Top 98%)
25K15.53 mi2.42 mi14573+774380+14380+114458(Top 51%)4466(Top 37%)4466(Top 82%)
30K18.64 mi3.11 mi14627-544459-794459-7914892(Top 52%)4850(Top 40%)4850(Top 89%)
20M20.00 mi1.36 mi14669-424514-554514-5515226(Top 54%)5175(Top 42%)5175(Top 95%)
21M21.00 mi1.00 mi14701-324556-424556-4215511(Top 55%)5469(Top 45%)5469(Top 100%)
35K21.75 mi0.75 mi14721-204584-284584-2815875(Top 56%)5730(Top 47%)5730(Top 105%)
23M23.00 mi1.25 mi14775-544643-594643-5915908(Top 56%)5844(Top 48%)5844(Top 107%)
24M24.00 mi1.00 mi14863-884724-814724-8116898(Top 59%)6451(Top 53%)6451(Top 118%)
40K24.85 mi0.85 mi14951-884801-774801-7717035(Top 60%)6616(Top 54%)6616(Top 121%)
25.2M25.20 mi0.35 mi14947+44823-224823-2215326(Top 54%)5761(Top 47%)5761(Top 105%)
Finish26.22 mi1.02 mi14979-324862-394862-3916099(Top 57%)6092(Top 50%)6092(Top 111%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14869

Females

4514

F18-39

4514

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

14773

Females

4411

F18-39

4411

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14869

Females

4514

F18-39

4514

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

14171

Females

4188

F18-39

4188

20K→Half

12.4 - 13.1 mi

Top 57%
×2story building
+19ft-37ft

Overall

16285

Females

5372

F18-39

5372

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

14458

Females

4466

F18-39

4466

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

14892

Females

4850

F18-39

4850

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

15226

Females

5175

F18-39

5175

20M→21M

20.0 - 21.0 mi

Top 55%
×8story building
+106ft-24ft

Overall

15511

Females

5469

F18-39

5469

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

15875

Females

5730

F18-39

5730

35K→23M

21.8 - 23.0 mi

Top 56%
×5story building
+23ft-63ft

Overall

15908

Females

5844

F18-39

5844

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

16898

Females

6451

F18-39

6451

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

17035

Females

6616

F18-39

6616

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15326

Females

5761

F18-39

5761

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16099

Females

6092

F18-39

6092

Passing Analysis

Category:
Athletes Passed
1729
Passed By
2163
Net Change
-434
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14545
5K → 10K250348-98#14545#14643
10K → 15K172237-65#14643#14708
15K → 20K283115+168#14708#14540
20K → Half20130-110#14540#14650
Half → 25K208131+77#14650#14573
25K → 30K227281-54#14573#14627
30K → 20M125167-42#14627#14669
20M → 21M93125-32#14669#14701
21M → 35K5979-20#14701#14721
35K → 23M91145-54#14721#14775
23M → 24M51139-88#14775#14863
24M → 40K45133-88#14863#14951
40K → 25.2M4541+4#14951#14947
25.2M → Finish6092-32#14947#14979
TOTALS17292163-434
📊

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