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BOSTON MARATHON 2025

Darcy James

Bib: 15840•F

ME

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 36%
Gender (Female)
#0 / 12228
Top 20%
Division (F18-39)
#0 / 5469
Top 34%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:52
Rank: #13811
Start → 5K
23:52 | 7:41/mi
10K· 6.21 mi
47:30
Rank: #13439 (+372)
5K → 10K
23:38 | 7:36/mi
15K· 9.32 mi
1:11:14
Rank: #13253 (+186)
10K → 15K
23:44 | 7:38/mi
20K· 12.43 mi
1:34:58
Rank: #12850 (+403)
15K → 20K
23:44 | 7:38/mi
Half· 13.11 mi
1:40:08
Rank: #12824 (+26)
20K → Half
5:10 | 7:34/mi
25K· 15.53 mi
1:58:42
Rank: #12531 (+293)
Half → 25K
18:34 | 7:39/mi
30K· 18.64 mi
2:22:25
Rank: #11736 (+795)
25K → 30K
23:43 | 7:38/mi
20M
2:32:45
Rank: #11385 (+351)
30K → 20M
10:20 | 7:36/mi
21M
2:40:48
Rank: #11130 (+255)
20M → 21M
8:03 | 8:03/mi
35K· 21.75 mi
2:46:25
Rank: #11011 (+119)
21M → 35K
5:37 | 7:30/mi
23M
2:56:11
Rank: #10818 (+193)
35K → 23M
9:46 | 7:48/mi
24M
3:03:43
Rank: #10661 (+157)
23M → 24M
7:32 | 7:32/mi
40K· 24.85 mi
3:10:17
Rank: #10533 (+128)
24M → 40K
6:34 | 7:41/mi
25.2M
3:13:10
Rank: #10467 (+66)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:20:42
Rank: #10349 (+118)
25.2M → Finish
7:32 | 7:24/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:40:08
Pace7:38 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:40:34
Pace7:40 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:4923:527:4123:52
7:41
-
10K
6.21 mi11:20:2747:307:3923:38
7:36
-0:05
15K
9.32 mi11:44:111:11:147:3923:44
7:38
+0:02
20K
12.43 mi12:07:551:34:587:3923:44
7:38
0:00
Half
13.11 mi12:13:051:40:087:385:10
7:34
-0:04
25K
15.53 mi12:31:391:58:427:3818:34
7:39
+0:05
30K
18.64 mi12:55:222:22:257:3823:43
7:38
-0:01
20M
20.00 mi13:05:422:32:457:3810:20
7:36
-0:02
21M
21.00 mi13:13:452:40:487:398:03
8:03
+0:27
35K
21.75 mi13:19:222:46:257:395:37
7:30
-0:33
23M
23.00 mi13:29:082:56:117:409:46
7:48
+0:18
24M
24.00 mi13:36:403:03:437:397:32
7:32
-0:16
40K
24.85 mi13:43:143:10:177:396:34
7:41
+0:09
25.2M
25.20 mi13:46:073:13:107:402:53
8:22
+0:41
Finish
26.22 mi13:53:393:20:427:407:32
7:24
-0:58

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

7:24 /mi

Average Pace

7:40 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:49

99% of race

Time at Steady Pace

2:53

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:39 /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 mi10:56:4923:527:4123:52
7:41
#13811
10K
6.21 mi11:20:2747:307:3923:38
7:36
#13439
15K
9.32 mi11:44:111:11:147:3923:44
7:38
#13253
20K
12.43 mi12:07:551:34:587:3923:44
7:38
#12850
Half
13.11 mi12:13:051:40:087:385:10
7:34
#12824
25K
15.53 mi12:31:391:58:427:3818:34
7:39
#12531
30K
18.64 mi12:55:222:22:257:3823:43
7:38
#11736
20M
20.00 mi13:05:422:32:457:3810:20
7:36
#11385
21M
21.00 mi13:13:452:40:487:398:03
8:03
#11130
35K
21.75 mi13:19:222:46:257:395:37
7:30
#11011
23M
23.00 mi13:29:082:56:117:409:46
7:48
#10818
24M
24.00 mi13:36:403:03:437:397:32
7:32
#10661
40K
24.85 mi13:43:143:10:177:396:34
7:41
#10533
25.2M
25.20 mi13:46:073:13:107:402:53
8:22
#10467
Finish
26.22 mi13:53:393:20:427:407:32
7:24
#10349
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi138113778377812951(Top 46%)3415(Top 28%)3415(Top 62%)
10K6.21 mi3.10 mi13439+3723609+1693609+16913087(Top 46%)3417(Top 28%)3417(Top 62%)
15K9.32 mi3.11 mi13253+1863542+673542+6712951(Top 46%)3415(Top 28%)3415(Top 62%)
20K12.43 mi3.11 mi12850+4033356+1863356+18611871(Top 42%)2928(Top 24%)2928(Top 54%)
Half13.11 mi0.68 mi12824+263350+63350+612364(Top 44%)3131(Top 26%)3131(Top 57%)
25K15.53 mi2.42 mi12531+2933209+1413209+14111220(Top 40%)2696(Top 22%)2696(Top 49%)
30K18.64 mi3.11 mi11736+7952862+3472862+3478722(Top 31%)1711(Top 14%)1711(Top 31%)
20M20.00 mi1.36 mi11385+3512716+1462716+1467750(Top 27%)1453(Top 12%)1453(Top 27%)
21M21.00 mi1.00 mi11130+2552621+952621+957681(Top 27%)1590(Top 13%)1590(Top 29%)
35K21.75 mi0.75 mi11011+1192580+412580+418734(Top 31%)2013(Top 16%)2013(Top 37%)
23M23.00 mi1.25 mi10818+1932514+662514+668616(Top 30%)2094(Top 17%)2094(Top 38%)
24M24.00 mi1.00 mi10661+1572480+342480+347978(Top 28%)1863(Top 15%)1863(Top 34%)
40K24.85 mi0.85 mi10533+1282430+502430+507999(Top 28%)1991(Top 16%)1991(Top 36%)
25.2M25.20 mi0.35 mi10467+662419+112419+118039(Top 28%)2097(Top 17%)2097(Top 38%)
Finish26.22 mi1.02 mi10349+1182395+242395+248463(Top 30%)2274(Top 19%)2274(Top 42%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21stories
+97ft-345ft

Overall

12951

Females

3415

F18-39

3415

5K→10K

3.1 - 6.2 mi

Top 46%
×5stories
+79ft-138ft

Overall

13087

Females

3417

F18-39

3417

10K→15K

6.2 - 9.3 mi

Top 46%
×3stories
+67ft-78ft

Overall

12951

Females

3415

F18-39

3415

15K→20K

9.3 - 12.4 mi

Top 42%
×5stories
+106ft-86ft

Overall

11871

Females

2928

F18-39

2928

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

12364

Females

3131

F18-39

3131

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

11220

Females

2696

F18-39

2696

25K→30K

15.5 - 18.6 mi

Top 31%
×9stories
+181ft-148ft

Overall

8722

Females

1711

F18-39

1711

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7750

Females

1453

F18-39

1453

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7681

Females

1590

F18-39

1590

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8734

Females

2013

F18-39

2013

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

8616

Females

2094

F18-39

2094

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

7978

Females

1863

F18-39

1863

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7999

Females

1991

F18-39

1991

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

8039

Females

2097

F18-39

2097

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2stories
+22ft-21ft

Overall

8463

Females

2274

F18-39

2274

Passing Analysis

Category:
Athletes Passed
3907
Passed By
445
Net Change
+3462
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13811
5K → 10K506134+372#13811#13439
10K → 15K298112+186#13439#13253
15K → 20K44744+403#13253#12850
20K → Half4923+26#12850#12824
Half → 25K31724+293#12824#12531
25K → 30K8005+795#12531#11736
30K → 20M3532+351#11736#11385
20M → 21M2638+255#11385#11130
21M → 35K1289+119#11130#11011
35K → 23M21320+193#11011#10818
23M → 24M17215+157#10818#10661
24M → 40K14315+128#10661#10533
40K → 25.2M737+66#10533#10467
25.2M → Finish14527+118#10467#10349
TOTALS3907445+3462
📊

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