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BOSTON MARATHON 2025

Theresa Nicholas

Bib: 11223•F

MI

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 22%
Gender (Female)
#0 / 12228
Top 6%
Division (F18-39)
#0 / 5469
Top 11%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:42
Rank: #7710
Start → 5K
21:42 | 6:59/mi
10K· 6.21 mi
43:36
Rank: #7985 (-275)
5K → 10K
21:54 | 7:03/mi
15K· 9.32 mi
1:05:32
Rank: #7983 (+2)
10K → 15K
21:56 | 7:04/mi
20K· 12.43 mi
1:27:41
Rank: #7868 (+115)
15K → 20K
22:09 | 7:08/mi
Half· 13.11 mi
1:32:27
Rank: #7844 (+24)
20K → Half
4:46 | 6:59/mi
25K· 15.53 mi
1:49:33
Rank: #7599 (+245)
Half → 25K
17:06 | 7:03/mi
30K· 18.64 mi
2:11:53
Rank: #7183 (+416)
25K → 30K
22:20 | 7:11/mi
20M
2:21:41
Rank: #6950 (+233)
30K → 20M
9:48 | 7:13/mi
21M
2:29:12
Rank: #6729 (+221)
20M → 21M
7:31 | 7:31/mi
35K· 21.75 mi
2:34:27
Rank: #6645 (+84)
21M → 35K
5:15 | 7:01/mi
23M
2:43:29
Rank: #6464 (+181)
35K → 23M
9:02 | 7:13/mi
24M
2:50:36
Rank: #6356 (+108)
23M → 24M
7:07 | 7:07/mi
40K· 24.85 mi
2:56:47
Rank: #6279 (+77)
24M → 40K
6:11 | 7:14/mi
25.2M
2:59:28
Rank: #6217 (+62)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
3:06:32
Rank: #6139 (+78)
25.2M → Finish
7:04 | 6:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:27
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:34:05
Pace7:11 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:5221:426:5921:42
6:59
-
10K
6.21 mi11:10:4643:367:0121:54
7:03
+0:04
15K
9.32 mi11:32:421:05:327:0221:56
7:04
+0:01
20K
12.43 mi11:54:511:27:417:0322:09
7:08
+0:04
Half
13.11 mi11:59:371:32:277:034:46
6:59
-0:09
25K
15.53 mi12:16:431:49:337:0317:06
7:03
+0:04
30K
18.64 mi12:39:032:11:537:0422:20
7:11
+0:08
20M
20.00 mi12:48:512:21:417:059:48
7:13
+0:02
21M
21.00 mi12:56:222:29:127:067:31
7:31
+0:18
35K
21.75 mi13:01:372:34:277:065:15
7:01
-0:30
23M
23.00 mi13:10:392:43:297:069:02
7:13
+0:12
24M
24.00 mi13:17:462:50:367:077:07
7:07
-0:06
40K
24.85 mi13:23:572:56:477:076:11
7:14
+0:07
25.2M
25.20 mi13:26:382:59:287:072:41
7:47
+0:33
Finish
26.22 mi13:33:423:06:327:077:04
6:56
-0:51

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

6:56 /mi

Average Pace

7:07 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:51

99% of race

Time at Steady Pace

2:41

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:07 /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 mi10:48:5221:426:5921:42
6:59
#7710
10K
6.21 mi11:10:4643:367:0121:54
7:03
#7985
15K
9.32 mi11:32:421:05:327:0221:56
7:04
#7983
20K
12.43 mi11:54:511:27:417:0322:09
7:08
#7868
Half
13.11 mi11:59:371:32:277:034:46
6:59
#7844
25K
15.53 mi12:16:431:49:337:0317:06
7:03
#7599
30K
18.64 mi12:39:032:11:537:0422:20
7:11
#7183
20M
20.00 mi12:48:512:21:417:059:48
7:13
#6950
21M
21.00 mi12:56:222:29:127:067:31
7:31
#6729
35K
21.75 mi13:01:372:34:277:065:15
7:01
#6645
23M
23.00 mi13:10:392:43:297:069:02
7:13
#6464
24M
24.00 mi13:17:462:50:367:077:07
7:07
#6356
40K
24.85 mi13:23:572:56:477:076:11
7:14
#6279
25.2M
25.20 mi13:26:382:59:287:072:41
7:47
#6217
Finish
26.22 mi13:33:423:06:327:077:04
6:56
#6139
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi77108868868049(Top 28%)1050(Top 9%)1050(Top 19%)
10K6.21 mi3.10 mi7985-275988-102988-1028298(Top 29%)1106(Top 9%)1106(Top 20%)
15K9.32 mi3.11 mi7983+2994-6994-68049(Top 28%)1050(Top 9%)1050(Top 19%)
20K12.43 mi3.11 mi7868+115975+19975+197694(Top 27%)998(Top 8%)998(Top 18%)
Half13.11 mi0.68 mi7844+24971+4971+47531(Top 27%)900(Top 7%)900(Top 16%)
25K15.53 mi2.42 mi7599+245907+64907+646669(Top 23%)770(Top 6%)770(Top 14%)
30K18.64 mi3.11 mi7183+416829+78829+785838(Top 21%)631(Top 5%)631(Top 12%)
20M20.00 mi1.36 mi6950+233793+36793+365286(Top 19%)582(Top 5%)582(Top 11%)
21M21.00 mi1.00 mi6729+221756+37756+374718(Top 17%)536(Top 4%)536(Top 10%)
35K21.75 mi0.75 mi6645+84750+6750+65508(Top 19%)758(Top 6%)758(Top 14%)
23M23.00 mi1.25 mi6464+181722+28722+284990(Top 18%)667(Top 5%)667(Top 12%)
24M24.00 mi1.00 mi6356+108719+3719+35326(Top 19%)827(Top 7%)827(Top 15%)
40K24.85 mi0.85 mi6279+77716+3716+35255(Top 19%)854(Top 7%)854(Top 16%)
25.2M25.20 mi0.35 mi6217+62708+8708+84846(Top 17%)813(Top 7%)813(Top 15%)
Finish26.22 mi1.02 mi6139+787087085333(Top 19%)979(Top 8%)979(Top 18%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21stories
+97ft-345ft

Overall

8049

Females

1050

F18-39

1050

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

8298

Females

1106

F18-39

1106

10K→15K

6.2 - 9.3 mi

Top 28%
×3stories
+67ft-78ft

Overall

8049

Females

1050

F18-39

1050

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7694

Females

998

F18-39

998

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7531

Females

900

F18-39

900

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6669

Females

770

F18-39

770

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

5838

Females

631

F18-39

631

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5286

Females

582

F18-39

582

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4718

Females

536

F18-39

536

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

5508

Females

758

F18-39

758

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

4990

Females

667

F18-39

667

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

5326

Females

827

F18-39

827

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5255

Females

854

F18-39

854

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4846

Females

813

F18-39

813

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5333

Females

979

F18-39

979

Passing Analysis

Category:
Athletes Passed
2302
Passed By
731
Net Change
+1571
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7710
5K → 10K105380-275#7710#7985
10K → 15K146144+2#7985#7983
15K → 20K19075+115#7983#7868
20K → Half3915+24#7868#7844
Half → 25K25914+245#7844#7599
25K → 30K43418+416#7599#7183
30K → 20M2396+233#7183#6950
20M → 21M2298+221#6950#6729
21M → 35K884+84#6729#6645
35K → 23M1909+181#6645#6464
23M → 24M12113+108#6464#6356
24M → 40K9518+77#6356#6279
40K → 25.2M653+62#6279#6217
25.2M → Finish10224+78#6217#6139
TOTALS2302731+1571
📊

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