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BOSTON MARATHON 2025

Nina Stephanou

Bib: 11567•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 13%
Gender (Female)
#0 / 12228
Top 2%
Division (F18-39)
#0 / 5469
Top 4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:19
Rank: #6788
Start → 5K
21:19 | 6:52/mi
10K· 6.21 mi
42:21
Rank: #6461 (+327)
5K → 10K
21:02 | 6:46/mi
15K· 9.32 mi
1:03:12
Rank: #6014 (+447)
10K → 15K
20:51 | 6:43/mi
20K· 12.43 mi
1:24:03
Rank: #5613 (+401)
15K → 20K
20:51 | 6:43/mi
Half· 13.11 mi
1:28:34
Rank: #5539 (+74)
20K → Half
4:31 | 6:37/mi
25K· 15.53 mi
1:44:46
Rank: #5218 (+321)
Half → 25K
16:12 | 6:41/mi
30K· 18.64 mi
2:05:49
Rank: #4742 (+476)
25K → 30K
21:03 | 6:47/mi
20M
2:14:56
Rank: #4485 (+257)
30K → 20M
9:07 | 6:43/mi
21M
2:22:03
Rank: #4307 (+178)
20M → 21M
7:07 | 7:07/mi
35K· 21.75 mi
2:26:57
Rank: #4215 (+92)
21M → 35K
4:54 | 6:33/mi
23M
2:35:20
Rank: #4050 (+165)
35K → 23M
8:23 | 6:42/mi
24M
2:41:55
Rank: #3939 (+111)
23M → 24M
6:35 | 6:35/mi
40K· 24.85 mi
2:47:42
Rank: #3852 (+87)
24M → 40K
5:47 | 6:46/mi
25.2M
2:50:18
Rank: #3828 (+24)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
2:57:00
Rank: #3744 (+84)
25.2M → Finish
6:42 | 6:34/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:28:34
Pace6:45 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:28:26
Pace6:45 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:2521:196:5221:19
6:52
-
10K
6.21 mi11:09:2742:216:4921:02
6:46
-0:06
15K
9.32 mi11:30:181:03:126:4720:51
6:43
-0:03
20K
12.43 mi11:51:091:24:036:4620:51
6:43
0:00
Half
13.11 mi11:55:401:28:346:454:31
6:37
-0:06
25K
15.53 mi12:11:521:44:466:4516:12
6:41
+0:04
30K
18.64 mi12:32:552:05:496:4521:03
6:47
+0:06
20M
20.00 mi12:42:022:14:566:459:07
6:43
-0:04
21M
21.00 mi12:49:092:22:036:467:07
7:07
+0:24
35K
21.75 mi12:54:032:26:576:454:54
6:33
-0:34
23M
23.00 mi13:02:262:35:206:458:23
6:42
+0:09
24M
24.00 mi13:09:012:41:556:456:35
6:35
-0:07
40K
24.85 mi13:14:482:47:426:455:47
6:46
+0:11
25.2M
25.20 mi13:17:242:50:186:452:36
7:32
+0:46
Finish
26.22 mi13:24:062:57:006:456:42
6:34
-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

6:33 /mi

Average Pace

6:45 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:24

99% of race

Time at Steady Pace

2:36

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:45 /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 mi10:48:2521:196:5221:19
6:52
#6788
10K
6.21 mi11:09:2742:216:4921:02
6:46
#6461
15K
9.32 mi11:30:181:03:126:4720:51
6:43
#6014
20K
12.43 mi11:51:091:24:036:4620:51
6:43
#5613
Half
13.11 mi11:55:401:28:346:454:31
6:37
#5539
25K
15.53 mi12:11:521:44:466:4516:12
6:41
#5218
30K
18.64 mi12:32:552:05:496:4521:03
6:47
#4742
20M
20.00 mi12:42:022:14:566:459:07
6:43
#4485
21M
21.00 mi12:49:092:22:036:467:07
7:07
#4307
35K
21.75 mi12:54:032:26:576:454:54
6:33
#4215
23M
23.00 mi13:02:262:35:206:458:23
6:42
#4050
24M
24.00 mi13:09:012:41:556:456:35
6:35
#3939
40K
24.85 mi13:14:482:47:426:455:47
6:46
#3852
25.2M
25.20 mi13:17:242:50:186:452:36
7:32
#3828
Finish
26.22 mi13:24:062:57:006:456:42
6:34
#3744
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi67886256255199(Top 18%)377(Top 3%)377(Top 7%)
10K6.21 mi3.10 mi6461+327560+65560+656073(Top 21%)511(Top 4%)511(Top 9%)
15K9.32 mi3.11 mi6014+447493+67493+675199(Top 18%)377(Top 3%)377(Top 7%)
20K12.43 mi3.11 mi5613+401440+53440+534551(Top 16%)309(Top 3%)309(Top 6%)
Half13.11 mi0.68 mi5539+74431+9431+94678(Top 16%)307(Top 3%)307(Top 6%)
25K15.53 mi2.42 mi5218+321382+49382+494016(Top 14%)259(Top 2%)259(Top 5%)
30K18.64 mi3.11 mi4742+476337+45337+453311(Top 12%)204(Top 2%)204(Top 4%)
20M20.00 mi1.36 mi4485+257304+33304+332529(Top 9%)143(Top 1%)143(Top 3%)
21M21.00 mi1.00 mi4307+178288+16288+162797(Top 10%)194(Top 2%)194(Top 4%)
35K21.75 mi0.75 mi4215+92282+6282+62767(Top 10%)203(Top 2%)203(Top 4%)
23M23.00 mi1.25 mi4050+165272+10272+102261(Top 8%)145(Top 1%)145(Top 3%)
24M24.00 mi1.00 mi3939+111267+5267+52451(Top 9%)181(Top 1%)181(Top 3%)
40K24.85 mi0.85 mi3852+87264+3264+32712(Top 10%)236(Top 2%)236(Top 4%)
25.2M25.20 mi0.35 mi3828+24263+1263+13651(Top 13%)453(Top 4%)453(Top 8%)
Finish26.22 mi1.02 mi3744+84257+6257+63228(Top 11%)361(Top 3%)361(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5199

Females

377

F18-39

377

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

6073

Females

511

F18-39

511

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5199

Females

377

F18-39

377

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4551

Females

309

F18-39

309

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4678

Females

307

F18-39

307

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

4016

Females

259

F18-39

259

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3311

Females

204

F18-39

204

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2529

Females

143

F18-39

143

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2797

Females

194

F18-39

194

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2767

Females

203

F18-39

203

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2261

Females

145

F18-39

145

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2451

Females

181

F18-39

181

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2712

Females

236

F18-39

236

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3651

Females

453

F18-39

453

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3228

Females

361

F18-39

361

Passing Analysis

Category:
Athletes Passed
3200
Passed By
156
Net Change
+3044
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6788
5K → 10K38861+327#6788#6461
10K → 15K46417+447#6461#6014
15K → 20K4065+401#6014#5613
20K → Half762+74#5613#5539
Half → 25K3265+321#5539#5218
25K → 30K4815+476#5218#4742
30K → 20M2570+257#4742#4485
20M → 21M1835+178#4485#4307
21M → 35K986+92#4307#4215
35K → 23M1716+165#4215#4050
23M → 24M1198+111#4050#3939
24M → 40K958+87#3939#3852
40K → 25.2M328+24#3852#3828
25.2M → Finish10420+84#3828#3744
TOTALS3200156+3044
📊

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