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BOSTON MARATHON 2025

Grace Breiten

Bib: 15376•F

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
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
9:10/mi
28:28
↑ 97↓ 3451.5%
10K· 6.21 mi
9:07/mi
56:48
↑ 79↓ 1380.4%
15K· 9.32 mi
9:53/mi
1:27:30
↑ 67↓ 78
20K· 12.43 mi
9:30/mi
1:57:02
↑ 106↓ 860.1%
Half· 13.11 mi
9:01/mi
2:03:11
↑ 19↓ 370.5%
25K· 15.53 mi
9:10/mi
2:25:25
↑ 66↓ 880.2%
30K· 18.64 mi
9:52/mi
2:56:04
↑ 181↓ 1480.2%
20M
9:40/mi
3:09:12
↑ 64↓ 500.2%
21M
10:02/mi
3:19:14
↑ 106↓ 241.6%
35K· 21.75 mi
9:17/mi
3:26:11
↑ 17↓ 861.7%
23M
9:15/mi
3:37:46
↑ 23↓ 630.6%
24M
9:16/mi
3:47:02
↓ 821.3%
40K· 24.85 mi
9:02/mi
3:54:45
↓ 200.3%
25.2M
9:37/mi
3:58:04
↑ 13↓ 160.2%
Finish· 26.22 mi
8:01/mi
4:06:14
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:03:11
Pace9:24 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:03:03
Pace9:23 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:00:5728:289:1028:28
9:10
-
10K
6.21 mi11:29:1756:489:0828:20
9:07
-0:03
15K
9.32 mi11:59:591:27:309:2330:42
9:53
+0:46
20K
12.43 mi12:29:311:57:029:2529:32
9:30
-0:23
Half
13.11 mi12:35:402:03:119:246:09
9:01
-0:29
25K
15.53 mi12:57:542:25:259:2222:14
9:10
+0:09
30K
18.64 mi13:28:332:56:049:2730:39
9:52
+0:42
20M
20.00 mi13:41:413:09:129:2813:08
9:40
-0:12
21M
21.00 mi13:51:433:19:149:2910:02
10:02
+0:22
35K
21.75 mi13:58:403:26:119:296:57
9:17
-0:45
23M
23.00 mi14:10:153:37:469:2811:35
9:15
-0:02
24M
24.00 mi14:19:313:47:029:289:16
9:16
+0:01
40K
24.85 mi14:27:143:54:459:277:43
9:02
-0:14
25.2M
25.20 mi14:30:333:58:049:273:19
9:37
+0:35
Finish
26.22 mi14:38:434:06:149:248:10
8:01
-1:36

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

8:01 /mi

Average Pace

9:24 /mi

Slowest Pace

10:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

14:19

6% of race

Time at Steady Pace

2:24:05

59% of race

Time at Slower Pace

1:27:50

36% of race

Average Pace: 9:23 /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 mi11:00:5728:289:1028:28
9:10
#23084
10K
6.21 mi11:29:1756:489:0828:20
9:07
#22988
15K
9.32 mi11:59:591:27:309:2330:42
9:53
#23719
20K
12.43 mi12:29:311:57:029:2529:32
9:30
#23529
Half
13.11 mi12:35:402:03:119:246:09
9:01
#23435
25K
15.53 mi12:57:542:25:259:2222:14
9:10
#22991
30K
18.64 mi13:28:332:56:049:2730:39
9:52
#22648
20M
20.00 mi13:41:413:09:129:2813:08
9:40
#22436
21M
21.00 mi13:51:433:19:149:2910:02
10:02
#22200
35K
21.75 mi13:58:403:26:119:296:57
9:17
#22106
23M
23.00 mi14:10:153:37:469:2811:35
9:15
#21854
24M
24.00 mi14:19:313:47:029:289:16
9:16
#21737
40K
24.85 mi14:27:143:54:459:277:43
9:02
#21549
25.2M
25.20 mi14:30:333:58:049:273:19
9:37
#21451
Finish
26.22 mi14:38:434:06:149:248:10
8:01
#21225
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi230849217921724732(Top 87%)10073(Top 82%)10073(Top 184%)
10K6.21 mi3.10 mi22988+969143+749143+7422899(Top 81%)9070(Top 74%)9070(Top 166%)
15K9.32 mi3.11 mi23719-7319528-3859528-38524732(Top 87%)10073(Top 82%)10073(Top 184%)
20K12.43 mi3.11 mi23529+1909420+1089420+10822928(Top 81%)9108(Top 74%)9108(Top 167%)
Half13.11 mi0.68 mi23435+949359+619359+6121907(Top 77%)8543(Top 70%)8543(Top 156%)
25K15.53 mi2.42 mi22991+4449142+2179142+21720660(Top 73%)7908(Top 65%)7908(Top 145%)
30K18.64 mi3.11 mi22648+3438994+1488994+14821208(Top 75%)8346(Top 68%)8346(Top 153%)
20M20.00 mi1.36 mi22436+2128891+1038891+10319841(Top 70%)7699(Top 63%)7699(Top 141%)
21M21.00 mi1.00 mi22200+2368776+1158776+11518453(Top 65%)7040(Top 58%)7040(Top 129%)
35K21.75 mi0.75 mi22106+948737+398737+3919566(Top 69%)7758(Top 63%)7758(Top 142%)
23M23.00 mi1.25 mi21854+2528636+1018636+10117599(Top 62%)6796(Top 56%)6796(Top 124%)
24M24.00 mi1.00 mi21737+1178593+438593+4318701(Top 66%)7396(Top 60%)7396(Top 135%)
40K24.85 mi0.85 mi21549+1888501+928501+9216512(Top 58%)6335(Top 52%)6335(Top 116%)
25.2M25.20 mi0.35 mi21451+988453+488453+4815312(Top 54%)5753(Top 47%)5753(Top 105%)
Finish26.22 mi1.02 mi21225+2268347+1068347+10613024(Top 46%)4460(Top 36%)4460(Top 82%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

24732

Females

10073

F18-39

10073

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

22899

Females

9070

F18-39

9070

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

24732

Females

10073

F18-39

10073

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

22928

Females

9108

F18-39

9108

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

21907

Females

8543

F18-39

8543

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

20660

Females

7908

F18-39

7908

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

21208

Females

8346

F18-39

8346

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

19841

Females

7699

F18-39

7699

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

18453

Females

7040

F18-39

7040

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

19566

Females

7758

F18-39

7758

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

17599

Females

6796

F18-39

6796

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18701

Females

7396

F18-39

7396

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16512

Females

6335

F18-39

6335

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15312

Females

5753

F18-39

5753

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

13024

Females

4460

F18-39

4460

Passing Analysis

Category:
Athletes Passed
2913
Passed By
1054
Net Change
+1859
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23084
5K → 10K276180+96#23084#22988
10K → 15K41772-731#22988#23719
15K → 20K24353+190#23719#23529
20K → Half984+94#23529#23435
Half → 25K4473+444#23435#22991
25K → 30K36522+343#22991#22648
30K → 20M2131+212#22648#22436
20M → 21M2393+236#22436#22200
21M → 35K995+94#22200#22106
35K → 23M2564+252#22106#21854
23M → 24M1236+117#21854#21737
24M → 40K1891+188#21737#21549
40K → 25.2M980+98#21549#21451
25.2M → Finish2260+226#21451#21225
TOTALS29131054+1859
📊

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