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BOSTON MARATHON 2025

Jenni Williams

Bib: 14099•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 49%
Gender (Female)
#0 / 12228
Top 35%
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
23:35
Rank: #13048
Start → 5K
23:35 | 7:35/mi
10K· 6.21 mi
47:26
Rank: #13349 (-301)
5K → 10K
23:51 | 7:41/mi
15K· 9.32 mi
1:11:39
Rank: #13644 (-295)
10K → 15K
24:13 | 7:48/mi
20K· 12.43 mi
1:36:22
Rank: #13853 (-209)
15K → 20K
24:43 | 7:57/mi
Half· 13.11 mi
1:41:37
Rank: #13807 (+46)
20K → Half
5:15 | 7:42/mi
25K· 15.53 mi
2:00:56
Rank: #13768 (+39)
Half → 25K
19:19 | 7:58/mi
30K· 18.64 mi
2:27:14
Rank: #13869 (-101)
25K → 30K
26:18 | 8:28/mi
20M
2:38:56
Rank: #13889 (-20)
30K → 20M
11:42 | 8:37/mi
21M
2:48:03
Rank: #13877 (+12)
20M → 21M
9:07 | 9:07/mi
35K· 21.75 mi
2:54:33
Rank: #13981 (-104)
21M → 35K
6:30 | 8:41/mi
23M
3:05:39
Rank: #14117 (-136)
35K → 23M
11:06 | 8:52/mi
24M
3:14:18
Rank: #14170 (-53)
23M → 24M
8:39 | 8:39/mi
40K· 24.85 mi
3:21:25
Rank: #14076 (+94)
24M → 40K
7:07 | 8:19/mi
25.2M
3:24:29
Rank: #14007 (+69)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:32:29
Rank: #13890 (+117)
25.2M → Finish
8:00 | 7:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:37
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:50:52
Pace8:27 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1123:357:3523:35
7:35
-
10K
6.21 mi11:18:0247:267:3823:51
7:41
+0:06
15K
9.32 mi11:42:151:11:397:4124:13
7:48
+0:07
20K
12.43 mi12:06:581:36:227:4524:43
7:57
+0:09
Half
13.11 mi12:12:131:41:377:455:15
7:42
-0:15
25K
15.53 mi12:31:322:00:567:4719:19
7:58
+0:16
30K
18.64 mi12:57:502:27:147:5426:18
8:28
+0:30
20M
20.00 mi13:09:322:38:567:5711:42
8:37
+0:09
21M
21.00 mi13:18:392:48:038:009:07
9:07
+0:30
35K
21.75 mi13:25:092:54:338:026:30
8:41
-0:26
23M
23.00 mi13:36:153:05:398:0411:06
8:52
+0:11
24M
24.00 mi13:44:543:14:188:068:39
8:39
-0:13
40K
24.85 mi13:52:013:21:258:067:07
8:19
-0:20
25.2M
25.20 mi13:55:053:24:298:073:04
8:54
+0:35
Finish
26.22 mi14:03:053:32:298:078:00
7:51
-1:03

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

7:35 /mi

Average Pace

8:07 /mi

Slowest Pace

9:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:56

61% of race

Time at Steady Pace

33:25

16% of race

Time at Slower Pace

50:08

24% of race

Average Pace: 8:06 /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 mi10:54:1123:357:3523:35
7:35
#13048
10K
6.21 mi11:18:0247:267:3823:51
7:41
#13349
15K
9.32 mi11:42:151:11:397:4124:13
7:48
#13644
20K
12.43 mi12:06:581:36:227:4524:43
7:57
#13853
Half
13.11 mi12:12:131:41:377:455:15
7:42
#13807
25K
15.53 mi12:31:322:00:567:4719:19
7:58
#13768
30K
18.64 mi12:57:502:27:147:5426:18
8:28
#13869
20M
20.00 mi13:09:322:38:567:5711:42
8:37
#13889
21M
21.00 mi13:18:392:48:038:009:07
9:07
#13877
35K
21.75 mi13:25:092:54:338:026:30
8:41
#13981
23M
23.00 mi13:36:153:05:398:0411:06
8:52
#14117
24M
24.00 mi13:44:543:14:188:068:39
8:39
#14170
40K
24.85 mi13:52:013:21:258:067:07
8:19
#14076
25.2M
25.20 mi13:55:053:24:298:073:04
8:54
#14007
Finish
26.22 mi14:03:053:32:298:078:00
7:51
#13890
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi130483342334214343(Top 50%)4231(Top 35%)4231(Top 77%)
10K6.21 mi3.10 mi13349-3013558-2163558-21613693(Top 48%)3776(Top 31%)3776(Top 69%)
15K9.32 mi3.11 mi13644-2953768-2103768-21014343(Top 50%)4231(Top 35%)4231(Top 77%)
20K12.43 mi3.11 mi13853-2093930-1623930-16214586(Top 51%)4419(Top 36%)4419(Top 81%)
Half13.11 mi0.68 mi13807+463911+193911+1913437(Top 47%)3748(Top 31%)3748(Top 69%)
25K15.53 mi2.42 mi13768+393909+23909+213648(Top 48%)4034(Top 33%)4034(Top 74%)
30K18.64 mi3.11 mi13869-1014034-1254034-12514555(Top 51%)4655(Top 38%)4655(Top 85%)
20M20.00 mi1.36 mi13889-204085-514085-5114504(Top 51%)4773(Top 39%)4773(Top 87%)
21M21.00 mi1.00 mi13877+124102-174102-1714207(Top 50%)4737(Top 39%)4737(Top 87%)
35K21.75 mi0.75 mi13981-1044179-774179-7716618(Top 59%)6114(Top 50%)6114(Top 112%)
23M23.00 mi1.25 mi14117-1364294-1154294-11515487(Top 55%)5589(Top 46%)5589(Top 102%)
24M24.00 mi1.00 mi14170-534348-544348-5415456(Top 54%)5618(Top 46%)5618(Top 103%)
40K24.85 mi0.85 mi14076+944318+304318+3012330(Top 43%)4099(Top 34%)4099(Top 75%)
25.2M25.20 mi0.35 mi14007+694292+264292+2611283(Top 40%)3657(Top 30%)3657(Top 67%)
Finish26.22 mi1.02 mi13890+1174263+294263+2911854(Top 42%)3862(Top 32%)3862(Top 71%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21stories
+97ft-345ft

Overall

14343

Females

4231

F18-39

4231

5K→10K

3.1 - 6.2 mi

Top 48%
×5stories
+79ft-138ft

Overall

13693

Females

3776

F18-39

3776

10K→15K

6.2 - 9.3 mi

Top 50%
×3stories
+67ft-78ft

Overall

14343

Females

4231

F18-39

4231

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

14586

Females

4419

F18-39

4419

20K→Half

12.4 - 13.1 mi

Top 47%
×2stories
+19ft-37ft

Overall

13437

Females

3748

F18-39

3748

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

13648

Females

4034

F18-39

4034

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

14555

Females

4655

F18-39

4655

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

14504

Females

4773

F18-39

4773

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

14207

Females

4737

F18-39

4737

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

16618

Females

6114

F18-39

6114

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

15487

Females

5589

F18-39

5589

23M→24M

23.0 - 24.0 mi

Top 54%
×6stories
+12ft-82ft

Overall

15456

Females

5618

F18-39

5618

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

12330

Females

4099

F18-39

4099

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11283

Females

3657

F18-39

3657

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2stories
+22ft-21ft

Overall

11854

Females

3862

F18-39

3862

Passing Analysis

Category:
Athletes Passed
1650
Passed By
2492
Net Change
-842
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13048
5K → 10K171472-301#13048#13349
10K → 15K121416-295#13349#13644
15K → 20K148357-209#13644#13853
20K → Half5711+46#13853#13807
Half → 25K197158+39#13807#13768
25K → 30K214315-101#13768#13869
30K → 20M114134-20#13869#13889
20M → 21M10391+12#13889#13877
21M → 35K42146-104#13877#13981
35K → 23M75211-136#13981#14117
23M → 24M67120-53#14117#14170
24M → 40K11925+94#14170#14076
40K → 25.2M767+69#14076#14007
25.2M → Finish14629+117#14007#13890
TOTALS16502492-842
📊

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