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BOSTON MARATHON 2025

Lynsey Amthor

Bib: 12068•F

MI

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 39%
Gender (Female)
#0 / 12228
Top 23%
Division (F18-39)
#0 / 5469
Top 39%
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
7:07/mi
22:06
↑ 97↓ 3451.5%
10K· 6.21 mi
7:09/mi
44:20
↑ 79↓ 1380.4%
15K· 9.32 mi
7:17/mi
1:06:59
↑ 67↓ 78
20K· 12.43 mi
7:33/mi
1:30:27
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:35:34
↑ 19↓ 370.5%
25K· 15.53 mi
7:46/mi
1:54:24
↑ 66↓ 880.2%
30K· 18.64 mi
8:12/mi
2:19:53
↑ 181↓ 1480.2%
20M
8:26/mi
2:31:21
↑ 64↓ 500.2%
21M
9:06/mi
2:40:27
↑ 106↓ 241.6%
35K· 21.75 mi
8:08/mi
2:46:32
↑ 17↓ 861.7%
23M
8:30/mi
2:57:10
↑ 23↓ 630.6%
24M
8:12/mi
3:05:22
↓ 821.3%
40K· 24.85 mi
8:16/mi
3:12:26
↓ 200.3%
25.2M
8:59/mi
3:15:32
↑ 13↓ 160.2%
Finish· 26.22 mi
7:37/mi
3:23:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:34
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:47:44
Pace8:13 /mi
📊Positive Split: 12.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3622:067:0722:06
7:07
-
10K
6.21 mi11:12:5044:207:0822:14
7:09
+0:02
15K
9.32 mi11:35:291:06:597:1122:39
7:17
+0:08
20K
12.43 mi11:58:571:30:277:1723:28
7:33
+0:16
Half
13.11 mi12:04:041:35:347:175:07
7:30
-0:03
25K
15.53 mi12:22:541:54:247:2218:50
7:46
+0:16
30K
18.64 mi12:48:232:19:537:3025:29
8:12
+0:26
20M
20.00 mi12:59:512:31:217:3411:28
8:26
+0:14
21M
21.00 mi13:08:572:40:277:389:06
9:06
+0:40
35K
21.75 mi13:15:022:46:327:396:05
8:08
-0:58
23M
23.00 mi13:25:402:57:107:4210:38
8:30
+0:22
24M
24.00 mi13:33:523:05:227:438:12
8:12
-0:18
40K
24.85 mi13:40:563:12:267:457:04
8:16
+0:04
25.2M
25.20 mi13:44:023:15:327:463:06
8:59
+0:43
Finish
26.22 mi13:51:483:23:187:467:46
7:37
-1:22

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

7:07 /mi

Average Pace

7:46 /mi

Slowest Pace

9:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:10

60% of race

Time at Steady Pace

58:18

29% of race

Time at Slower Pace

22:50

11% of race

Average Pace: 7:45 /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 mi10:50:3622:067:0722:06
7:07
#8789
10K
6.21 mi11:12:5044:207:0822:14
7:09
#8916
15K
9.32 mi11:35:291:06:597:1122:39
7:17
#9230
20K
12.43 mi11:58:571:30:277:1723:28
7:33
#9684
Half
13.11 mi12:04:041:35:347:175:07
7:30
#9780
25K
15.53 mi12:22:541:54:247:2218:50
7:46
#10138
30K
18.64 mi12:48:232:19:537:3025:29
8:12
#10627
20M
20.00 mi12:59:512:31:217:3411:28
8:26
#10836
21M
21.00 mi13:08:572:40:277:389:06
9:06
#11001
35K
21.75 mi13:15:022:46:327:396:05
8:08
#11057
23M
23.00 mi13:25:402:57:107:4210:38
8:30
#11156
24M
24.00 mi13:33:523:05:227:438:12
8:12
#11192
40K
24.85 mi13:40:563:12:267:457:04
8:16
#11199
25.2M
25.20 mi13:44:023:15:327:463:06
8:59
#11190
Finish
26.22 mi13:51:483:23:187:467:46
7:37
#11120
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8789128712879943(Top 35%)1866(Top 15%)1866(Top 34%)
10K6.21 mi3.10 mi8916-1271354-671354-679142(Top 32%)1437(Top 12%)1437(Top 26%)
15K9.32 mi3.11 mi9230-3141494-1401494-1409943(Top 35%)1866(Top 15%)1866(Top 34%)
20K12.43 mi3.11 mi9684-4541731-2371731-23711208(Top 39%)2586(Top 21%)2586(Top 47%)
Half13.11 mi0.68 mi9780-961768-371768-3711767(Top 41%)2806(Top 23%)2806(Top 51%)
25K15.53 mi2.42 mi10138-3581976-2081976-20812089(Top 43%)3160(Top 26%)3160(Top 58%)
30K18.64 mi3.11 mi10627-4892272-2962272-29612839(Top 45%)3736(Top 31%)3736(Top 68%)
20M20.00 mi1.36 mi10836-2092427-1552427-15513394(Top 47%)4180(Top 34%)4180(Top 76%)
21M21.00 mi1.00 mi11001-1652546-1192546-11914104(Top 50%)4677(Top 38%)4677(Top 86%)
35K21.75 mi0.75 mi11057-562608-622608-6213147(Top 46%)4231(Top 35%)4231(Top 77%)
23M23.00 mi1.25 mi11156-992697-892697-8913269(Top 47%)4407(Top 36%)4407(Top 81%)
24M24.00 mi1.00 mi11192-362758-612758-6112575(Top 44%)4086(Top 33%)4086(Top 75%)
40K24.85 mi0.85 mi11199-72797-392797-3911976(Top 42%)3897(Top 32%)3897(Top 71%)
25.2M25.20 mi0.35 mi11190+92808-112808-1111778(Top 41%)3854(Top 32%)3854(Top 70%)
Finish26.22 mi1.02 mi11120+702808280810127(Top 36%)3047(Top 25%)3047(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9943

Females

1866

F18-39

1866

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

9142

Females

1437

F18-39

1437

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9943

Females

1866

F18-39

1866

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

11208

Females

2586

F18-39

2586

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11767

Females

2806

F18-39

2806

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

12089

Females

3160

F18-39

3160

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

12839

Females

3736

F18-39

3736

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

13394

Females

4180

F18-39

4180

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

14104

Females

4677

F18-39

4677

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

13147

Females

4231

F18-39

4231

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

13269

Females

4407

F18-39

4407

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

12575

Females

4086

F18-39

4086

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11976

Females

3897

F18-39

3897

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11778

Females

3854

F18-39

3854

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

10127

Females

3047

F18-39

3047

Passing Analysis

Category:
Athletes Passed
1042
Passed By
3370
Net Change
-2331
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8789
5K → 10K152279-127#8789#8916
10K → 15K72386-314#8916#9230
15K → 20K82536-454#9230#9684
20K → Half11107-96#9684#9780
Half → 25K76432-358#9780#10138
25K → 30K117605-489#10138#10627
30K → 20M64273-209#10627#10836
20M → 21M56221-165#10836#11001
21M → 35K45101-56#11001#11057
35K → 23M76175-99#11057#11156
23M → 24M76112-36#11156#11192
24M → 40K7077-7#11192#11199
40K → 25.2M3728+9#11199#11190
25.2M → Finish10838+70#11190#11120
TOTALS10423370-2331
📊

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