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BOSTON MARATHON 2025

Grace Giles

Bib: 27713•F

MA

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

Start
0:00:00
Race begins
5K· 3.11 mi
28:11
Rank: #22728
Start → 5K
9:04/mi
28:11 split
10K· 6.21 mi
55:47
Rank: #22340 (+388)
5K → 10K
8:53/mi
27:36 split
15K· 9.32 mi
1:23:24
Rank: #22068 (+272)
10K → 15K
8:53/mi
27:37 split
20K· 12.43 mi
1:51:08
Rank: #21667 (+401)
15K → 20K
8:56/mi
27:44 split
Half· 13.11 mi
1:57:08
Rank: #21622 (+45)
20K → Half
8:48/mi
6:00 split
25K· 15.53 mi
2:18:51
Rank: #21288 (+334)
Half → 25K
8:57/mi
21:43 split
30K· 18.64 mi
2:47:36
Rank: #20824 (+464)
25K → 30K
9:15/mi
28:45 split
20M
3:00:24
Rank: #20644 (+180)
30K → 20M
9:25/mi
12:48 split
21M
3:10:28
Rank: #20515 (+129)
20M → 21M
10:04/mi
10:04 split
35K· 21.75 mi
3:17:10
Rank: #20435 (+80)
21M → 35K
8:57/mi
6:42 split
23M
3:28:55
Rank: #20297 (+138)
35K → 23M
9:23/mi
11:45 split
24M
3:37:53
Rank: #20187 (+110)
23M → 24M
8:58/mi
8:58 split
40K· 24.85 mi
3:45:47
Rank: #20091 (+96)
24M → 40K
9:14/mi
7:54 split
25.2M
3:49:06
Rank: #20008 (+83)
40K → 25.2M
9:37/mi
3:19 split
Finish· 26.22 mi
3:57:29
Rank: #19837 (+171)
25.2M → Finish
8:14/mi
8:23 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:08
Pace8:56 /mi
2nd Half
Distance13.11 mi
Time2:00:21
Pace9:11 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:3328:119:0428:11
9:04
-
10K
6.21 mi12:13:0955:478:5927:36
8:53
-0:11
15K
9.32 mi12:40:461:23:248:5727:37
8:53
0:00
20K
12.43 mi13:08:301:51:088:5727:44
8:56
+0:03
Half
13.11 mi13:14:301:57:088:566:00
8:48
-0:08
25K
15.53 mi13:36:132:18:518:5621:43
8:57
+0:09
30K
18.64 mi14:04:582:47:368:5928:45
9:15
+0:18
20M
20.00 mi14:17:463:00:249:0112:48
9:25
+0:10
21M
21.00 mi14:27:503:10:289:0410:04
10:04
+0:39
35K
21.75 mi14:34:323:17:109:046:42
8:57
-1:07
23M
23.00 mi14:46:173:28:559:0511:45
9:23
+0:26
24M
24.00 mi14:55:153:37:539:058:58
8:58
-0:25
40K
24.85 mi15:03:093:45:479:057:54
9:14
+0:16
25.2M
25.20 mi15:06:283:49:069:053:19
9:37
+0:23
Finish
26.22 mi15:14:513:57:299:048:23
8:14
-1:23

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

8:14 /mi

Average Pace

9:04 /mi

Slowest Pace

10:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

8:23

4% of race

Time at Steady Pace

2:34:31

65% of race

Time at Slower Pace

1:14:35

31% of race

Average Pace: 9:03 /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 mi11:45:3328:119:0428:11
9:04
#22728
10K
6.21 mi12:13:0955:478:5927:36
8:53
#22340
15K
9.32 mi12:40:461:23:248:5727:37
8:53
#22068
20K
12.43 mi13:08:301:51:088:5727:44
8:56
#21667
Half
13.11 mi13:14:301:57:088:566:00
8:48
#21622
25K
15.53 mi13:36:132:18:518:5621:43
8:57
#21288
30K
18.64 mi14:04:582:47:368:5928:45
9:15
#20824
20M
20.00 mi14:17:463:00:249:0112:48
9:25
#20644
21M
21.00 mi14:27:503:10:289:0410:04
10:04
#20515
35K
21.75 mi14:34:323:17:109:046:42
8:57
#20435
23M
23.00 mi14:46:173:28:559:0511:45
9:23
#20297
24M
24.00 mi14:55:153:37:539:058:58
8:58
#20187
40K
24.85 mi15:03:093:45:479:057:54
9:14
#20091
25.2M
25.20 mi15:06:283:49:069:053:19
9:37
#20008
Finish
26.22 mi15:14:513:57:299:048:23
8:14
#19837
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi227289027902721525(Top 76%)8292(Top 68%)8292(Top 152%)
10K6.21 mi3.10 mi22340+3888805+2228805+22221833(Top 77%)8502(Top 70%)8502(Top 155%)
15K9.32 mi3.11 mi22068+2728636+1698636+16921525(Top 76%)8292(Top 68%)8292(Top 152%)
20K12.43 mi3.11 mi21667+4018419+2178419+21720610(Top 73%)7838(Top 64%)7838(Top 143%)
Half13.11 mi0.68 mi21622+458394+258394+2520900(Top 74%)7983(Top 65%)7983(Top 146%)
25K15.53 mi2.42 mi21288+3348205+1898205+18919725(Top 69%)7383(Top 60%)7383(Top 135%)
30K18.64 mi3.11 mi20824+4648000+2058000+20518922(Top 67%)7080(Top 58%)7080(Top 129%)
20M20.00 mi1.36 mi20644+1807914+867914+8618844(Top 66%)7184(Top 59%)7184(Top 131%)
21M21.00 mi1.00 mi20515+1297862+527862+5218576(Top 65%)7101(Top 58%)7101(Top 130%)
35K21.75 mi0.75 mi20435+807830+327830+3218057(Top 64%)6939(Top 57%)6939(Top 127%)
23M23.00 mi1.25 mi20297+1387786+447786+4418190(Top 64%)7080(Top 58%)7080(Top 129%)
24M24.00 mi1.00 mi20187+1107744+427744+4217227(Top 61%)6616(Top 54%)6616(Top 121%)
40K24.85 mi0.85 mi20091+967709+357709+3517582(Top 62%)6915(Top 57%)6915(Top 126%)
25.2M25.20 mi0.35 mi20008+837669+407669+4015301(Top 54%)5742(Top 47%)5742(Top 105%)
Finish26.22 mi1.02 mi19837+1717593+767593+7614490(Top 51%)5213(Top 43%)5213(Top 95%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

21525

Females

8292

F18-39

8292

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

21833

Females

8502

F18-39

8502

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

21525

Females

8292

F18-39

8292

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

20610

Females

7838

F18-39

7838

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

20900

Females

7983

F18-39

7983

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

19725

Females

7383

F18-39

7383

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

18922

Females

7080

F18-39

7080

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

18844

Females

7184

F18-39

7184

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

18576

Females

7101

F18-39

7101

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

18057

Females

6939

F18-39

6939

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

18190

Females

7080

F18-39

7080

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

17227

Females

6616

F18-39

6616

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17582

Females

6915

F18-39

6915

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15301

Females

5742

F18-39

5742

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14490

Females

5213

F18-39

5213

Passing Analysis

Category:
Athletes Passed
3262
Passed By
371
Net Change
+2891
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22728
5K → 10K495107+388#22728#22340
10K → 15K34472+272#22340#22068
15K → 20K43231+401#22068#21667
20K → Half5813+45#21667#21622
Half → 25K34410+334#21622#21288
25K → 30K48218+464#21288#20824
30K → 20M19919+180#20824#20644
20M → 21M15324+129#20644#20515
21M → 35K9818+80#20515#20435
35K → 23M16426+138#20435#20297
23M → 24M1155+110#20297#20187
24M → 40K11014+96#20187#20091
40K → 25.2M896+83#20091#20008
25.2M → Finish1798+171#20008#19837
TOTALS3262371+2891
📊

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