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BOSTON MARATHON 2025

Grace Yang

Bib: 17811•F

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 33%
Gender (Female)
#0 / 12228
Top 16%
Division (F18-39)
#0 / 5469
Top 28%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:47
Rank: #16404
Start → 5K
24:47 | 7:59/mi
10K· 6.21 mi
48:21
Rank: #14595 (+1809)
5K → 10K
23:34 | 7:35/mi
15K· 9.32 mi
1:11:31
Rank: #13512 (+1083)
10K → 15K
23:10 | 7:27/mi
20K· 12.43 mi
1:34:55
Rank: #12815 (+697)
15K → 20K
23:24 | 7:32/mi
Half· 13.11 mi
1:39:54
Rank: #12670 (+145)
20K → Half
4:59 | 7:18/mi
25K· 15.53 mi
1:58:08
Rank: #12220 (+450)
Half → 25K
18:14 | 7:31/mi
30K· 18.64 mi
2:22:13
Rank: #11670 (+550)
25K → 30K
24:05 | 7:45/mi
20M
2:32:42
Rank: #11361 (+309)
30K → 20M
10:29 | 7:43/mi
21M
2:40:44
Rank: #11098 (+263)
20M → 21M
8:02 | 8:02/mi
35K· 21.75 mi
2:46:04
Rank: #10887 (+211)
21M → 35K
5:20 | 7:08/mi
23M
2:55:21
Rank: #10541 (+346)
35K → 23M
9:17 | 7:25/mi
24M
3:02:27
Rank: #10233 (+308)
23M → 24M
7:06 | 7:06/mi
40K· 24.85 mi
3:08:26
Rank: #9916 (+317)
24M → 40K
5:59 | 7:00/mi
25.2M
3:10:58
Rank: #9760 (+156)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
3:17:40
Rank: #9414 (+346)
25.2M → Finish
6:42 | 6:34/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:39:54
Pace7:37 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:37:46
Pace7:27 /mi
📊Negative Split: 2.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:0124:477:5924:47
7:59
-
10K
6.21 mi11:38:3548:217:4723:34
7:35
-0:24
15K
9.32 mi12:01:451:11:317:4023:10
7:27
-0:08
20K
12.43 mi12:25:091:34:557:3823:24
7:32
+0:05
Half
13.11 mi12:30:081:39:547:374:59
7:18
-0:14
25K
15.53 mi12:48:221:58:087:3618:14
7:31
+0:13
30K
18.64 mi13:12:272:22:137:3824:05
7:45
+0:14
20M
20.00 mi13:22:562:32:427:3810:29
7:43
-0:02
21M
21.00 mi13:30:582:40:447:398:02
8:02
+0:19
35K
21.75 mi13:36:182:46:047:385:20
7:08
-0:54
23M
23.00 mi13:45:352:55:217:379:17
7:25
+0:17
24M
24.00 mi13:52:413:02:277:367:06
7:06
-0:19
40K
24.85 mi13:58:403:08:267:355:59
7:00
-0:06
25.2M
25.20 mi14:01:123:10:587:352:32
7:21
+0:21
Finish
26.22 mi14:07:543:17:407:336:42
6:34
-0:47

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

6:34 /mi

Average Pace

7:33 /mi

Slowest Pace

8:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

25:07

13% of race

Time at Steady Pace

1:45:10

53% of race

Time at Slower Pace

1:07:23

34% of race

Average Pace: 7:32 /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 mi11:15:0124:477:5924:47
7:59
#16404
10K
6.21 mi11:38:3548:217:4723:34
7:35
#14595
15K
9.32 mi12:01:451:11:317:4023:10
7:27
#13512
20K
12.43 mi12:25:091:34:557:3823:24
7:32
#12815
Half
13.11 mi12:30:081:39:547:374:59
7:18
#12670
25K
15.53 mi12:48:221:58:087:3618:14
7:31
#12220
30K
18.64 mi13:12:272:22:137:3824:05
7:45
#11670
20M
20.00 mi13:22:562:32:427:3810:29
7:43
#11361
21M
21.00 mi13:30:582:40:447:398:02
8:02
#11098
35K
21.75 mi13:36:182:46:047:385:20
7:08
#10887
23M
23.00 mi13:45:352:55:217:379:17
7:25
#10541
24M
24.00 mi13:52:413:02:277:367:06
7:06
#10233
40K
24.85 mi13:58:403:08:267:355:59
7:00
#9916
25.2M
25.20 mi14:01:123:10:587:352:32
7:21
#9760
Finish
26.22 mi14:07:543:17:407:336:42
6:34
#9414
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi164045388538811388(Top 40%)2571(Top 21%)2571(Top 47%)
10K6.21 mi3.10 mi14595+18094292+10964292+109612885(Top 45%)3301(Top 27%)3301(Top 60%)
15K9.32 mi3.11 mi13512+10833694+5983694+59811388(Top 40%)2571(Top 21%)2571(Top 47%)
20K12.43 mi3.11 mi12815+6973335+3593335+35911038(Top 39%)2490(Top 20%)2490(Top 46%)
Half13.11 mi0.68 mi12670+1453253+823253+8210095(Top 36%)2001(Top 16%)2001(Top 37%)
25K15.53 mi2.42 mi12220+4503030+2233030+22310150(Top 36%)2155(Top 18%)2155(Top 39%)
30K18.64 mi3.11 mi11670+5502823+2072823+2079575(Top 34%)2085(Top 17%)2085(Top 38%)
20M20.00 mi1.36 mi11361+3092701+1222701+1228479(Top 30%)1748(Top 14%)1748(Top 32%)
21M21.00 mi1.00 mi11098+2632598+1032598+1037564(Top 27%)1544(Top 13%)1544(Top 28%)
35K21.75 mi0.75 mi10887+2112515+832515+836217(Top 22%)1007(Top 8%)1007(Top 18%)
23M23.00 mi1.25 mi10541+3462372+1432372+1436163(Top 22%)1088(Top 9%)1088(Top 20%)
24M24.00 mi1.00 mi10233+3082258+1142258+1145254(Top 18%)816(Top 7%)816(Top 15%)
40K24.85 mi0.85 mi9916+3172136+1222136+1223948(Top 14%)498(Top 4%)498(Top 9%)
25.2M25.20 mi0.35 mi9760+1562079+572079+572832(Top 10%)308(Top 3%)308(Top 6%)
Finish26.22 mi1.02 mi9414+3461950+1291950+1293246(Top 11%)379(Top 3%)379(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

11388

Females

2571

F18-39

2571

5K→10K

3.1 - 6.2 mi

Top 45%
×5stories
+79ft-138ft

Overall

12885

Females

3301

F18-39

3301

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

11388

Females

2571

F18-39

2571

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

11038

Females

2490

F18-39

2490

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

10095

Females

2001

F18-39

2001

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

10150

Females

2155

F18-39

2155

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9575

Females

2085

F18-39

2085

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

8479

Females

1748

F18-39

1748

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7564

Females

1544

F18-39

1544

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

6217

Females

1007

F18-39

1007

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

6163

Females

1088

F18-39

1088

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

5254

Females

816

F18-39

816

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3948

Females

498

F18-39

498

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2832

Females

308

F18-39

308

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3246

Females

379

F18-39

379

Passing Analysis

Category:
Athletes Passed
7072*
Passed By
82
Net Change
+6990
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16404
5K → 10K182617+1809#16404#14595
10K → 15K10863+1083#14595#13512
15K → 20K7058+697#13512#12815
20K → Half1461+145#12815#12670
Half → 25K46111+450#12670#12220
25K → 30K57323+550#12220#11670
30K → 20M3167+309#11670#11361
20M → 21M2674+263#11361#11098
21M → 35K2121+211#11098#10887
35K → 23M3471+346#10887#10541
23M → 24M3135+308#10541#10233
24M → 40K317*0+317#10233#9916
40K → 25.2M1560+156#9916#9760
25.2M → Finish3471+346#9760#9414
TOTALS7072*82+6990

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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